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View Full Version : Yonex Head Shape - Purpose?


JackB1
05-25-2011, 09:49 AM
Yonex is the only racquet with that boxy-square headshape to their racquets. What is the purpose of this design and what would be the benefits? It would seem to give you a little more room on mishits on the outer edges of the frame, towards 11/1 or 7/5 o' clock.

The reason I ask is because I have just started playing with a VCore 98 and it's taking me a little time to get used to this new frame shape. I also have been framing balls sometimes on kick serves and I'm not sure if it's due to the frame shape or not?

Power Player
05-25-2011, 10:15 AM
Enlarged sweetspot.

Gasolina
05-25-2011, 10:15 AM
Its supposed to be the Isometric tech. Not sure if its a gimmick or not, but I kinda like it because it makes the racquet head appear smaller. Don't really like the look of the Egg-ish prince heads too.

vandre
05-25-2011, 10:34 AM
Enlarged sweetspot.

QFT

the headshape does take some getting used to but its nice once you do!

Boricua
05-25-2011, 10:38 AM
Big sweetspot and less vibration when hitting.

Gasolina
05-25-2011, 10:41 AM
I went ahead and checked the power zone sizes of the Yonex RDiS Mid vs. the WIlson BLX Blade Tour and the sweetspot dose extend to the sides more than the Blade. Interesting

Agent Orynge
05-25-2011, 10:53 AM
http://www.tennis-warehouse.com/ractechpage.html?PCODE=IS3HM

fuzz nation
05-25-2011, 11:12 AM
If the sweet-spot more or less mimics the shape of the hoop, I believe that the square-ish isometric profile of Yonex frames makes for a slightly wider sweet-spot. I also think that it makes for a sweet-spot that ends more abruptly at the top of the string bed compared with a more oval shaped head though. That's been my experience having used the older MP Tour-1 mids, the more recent RDS 002 Tours, and also their RQiS 1 Tour.

olliess
05-25-2011, 11:24 AM
I think the underlying idea is to keep the mains a more even length as you move away from the center.

JackB1
05-25-2011, 11:28 AM
QFT

the headshape does take some getting used to but its nice once you do!

Did u frame balls now and then when you started with Yonex?

JackB1
05-25-2011, 11:30 AM
Enlarged sweetspot.

I don't find the sweetspot on Yonex racquets noticeably larger than other similar racquets.

JackB1
05-25-2011, 11:32 AM
http://www.tennis-warehouse.com/ractechpage.html?PCODE=IS3HM

48% larger than oval shaped racquets???

lol. marketing mumbo jumbo I say.

It's like Prince claiming every new model has a 50% larger sweetspot than the prior one.

Gasolina
05-25-2011, 11:37 AM
Did u frame balls now and then when you started with Yonex?
I for one did. Although I do tend to frame balls everytime I switch racquets

vandre
05-25-2011, 11:45 AM
Did u frame balls now and then when you started with Yonex?

yep. lots more than usual for a time. if i remember correctly, they were mostly near the top of the hoop. then i adjusted and now i can't hardly hit with anything else.

eidolonshinobi
05-25-2011, 11:52 AM
yep. lots more than usual for a time. if i remember correctly, they were mostly near the top of the hoop. then i adjusted and now i can't hardly hit with anything else.

+1
yonex frames take some time to get used to but they're worth the investment because they're quality racquets.

Agent Orynge
05-25-2011, 12:34 PM
48% larger than oval shaped racquets???

lol. marketing mumbo jumbo I say.

It's like Prince claiming every new model has a 50% larger sweetspot than the prior one.

I agree, for the most part. The only thing unique about the head shape is that you get corners. So, the upper and lower most strings are longer than they are on traditional, circular frames, but I don't think it quite adds up to a 48% improvement.

I actually started with Yonex, so I never thought any less of them for having a different head shape. Eventually I moved on because the frames were just too muted for my tastes, though I can't say if that was caused by the isometric head.

By the way, what strings are in this London? They're atrocious.

JackB1
05-25-2011, 12:34 PM
yep. lots more than usual for a time. if i remember correctly, they were mostly near the top of the hoop. then i adjusted and now i can't hardly hit with anything else.

That's nice to hear I have company :)

Just to clarify, it's only during kick serves that I frame an occasional ball.
I am guessing that I am hitting it either too early or too late. Maybe it's just a timing issue? I guess I can try hitting some with quicker timing and some with "later" timing and see which gets better results?

Kemitak
05-25-2011, 06:36 PM
I wonder if the square head also helps generate spin...

TheBoom
05-25-2011, 06:48 PM
I think it has a great effect on the power for one reason or another i was able to destroy the ball with the 100 mp and it had a very distinct feel to it almost like a trampoline? Anyway i may look into the v core line this summer for one reason or another but definitely has good characteristics to it

Fuji
05-25-2011, 07:00 PM
I've used Yonex for about a month now, and I haven't noticed any extra framing, but I did notice added comfort. It's great when hitting in the upper hoop for me. :)

-Fuji

JackB1
05-25-2011, 07:51 PM
I've used Yonex for about a month now, and I haven't noticed any extra framing, but I did notice added comfort. It's great when hitting in the upper hoop for me. :)

-Fuji

I definitely notice the sweetspot being a little higher than middle. On the flipside, balls hit below the middle go nowhere.

vandre
05-25-2011, 08:04 PM
I definitely notice the sweetspot being a little higher than middle. On the flipside, balls hit below the middle go nowhere.

you know, i've noticed that i like to hit higher in the head with mine better than low. that doesn't seem to follow with the powermap of my stick, but oh well.

Jack Romeo
05-25-2011, 08:25 PM
i think this has been discussed before and the sweetspot of the yonex is definitely different than other rackets. i tend to think of it as a "sweetish zone." it's a bigger, more consistent-feeling area of the stringbed that feels sweet. but at the same time, the center doesn't seem to be as sweet as the centers of the rounder-shaped heads of other racket brands.

but also now, there are other brands that use technologies with similar effects as the isometric design. i think the prince o-port/speedport technologies and the babolat woofer systems make their stringbeds feel a bit similar to yonex - consistent all over but not totally sweet in the middle. i've tried the o3 white, o3 red, speedport white, pure storm, pure drive gt and aeropro drive cortex and that's how i felt about the stringbeds of these rackets.

vsbabolat
05-25-2011, 08:30 PM
Yonex is the only racquet with that boxy-square headshape to their racquets. What is the purpose of this design and what would be the benefits? It would seem to give you a little more room on mishits on the outer edges of the frame, towards 11/1 or 7/5 o' clock.

The reason I ask is because I have just started playing with a VCore 98 and it's taking me a little time to get used to this new frame shape. I also have been framing balls sometimes on kick serves and I'm not sure if it's due to the frame shape or not?

http://www.yonex.com/tennis/technology/racquets.html
10% bigger sweetspot than an ordinary round head racquet
The ISOMETRIC square head shape reduces the inert space found in a conventional round frame. As a result, the racquet is easier to swing through and has superior manoeuvrability.

The sweetspot is the area of a racquet where the longest main and longest cross strings meet in the stringbed. In an ordinary roundframe racquet, the sweetspot is where the 8 main and 11 cross strings meet.

In the YONEX ISOMETRIC square head racquet, 10 main and 13 cross strings meet in the stringbed to produce a sweetspot that is 10% larger than the effective hitting area of a conventional round head racquet.

JackB1
05-26-2011, 05:44 AM
I am sorry, but I think this larger sweetspot thing is just not true. I have been using the VCore 98 for 2 weeks now and I don't find the sweetspot any larger than any other similar racquets. In fact, it seems a little smaller to me than most.

tennismonkey
05-26-2011, 05:56 AM
i can mirror jack romeo's assessment. yonnies have a slightly larger sweetspot that is not quite as "sweet". it's distributed over a larger range. i tend to hit high on the hoop and with yonnies i find far less dead feel up there. i think the feel of a yonex with a 98 square inch head size feels like a 100 square inch racquet in terms of sweetspot size and feel.

jack - i don't discount your take but i wonder if you have another 98 square inch racquet to compare with your vcore 98. apples to apples so to speak.

JackB1
05-26-2011, 06:18 AM
i can mirror jack romeo's assessment. yonnies have a slightly larger sweetspot that is not quite as "sweet". it's distributed over a larger range. i tend to hit high on the hoop and with yonnies i find far less dead feel up there. i think the feel of a yonex with a 98 square inch head size feels like a 100 square inch racquet in terms of sweetspot size and feel.

jack - i don't discount your take but i wonder if you have another 98 square inch racquet to compare with your vcore 98. apples to apples so to speak.

Yes, I can compare to the 98" Becker London which I played with for the past 6 months or so. Any differences in sweetspot size are pretty much immaterial and not very noticeable IMO.

T-ennis 888
05-26-2011, 07:15 AM
i think this has been discussed before and the sweetspot of the yonex is definitely different than other rackets. i tend to think of it as a "sweetish zone." it's a bigger, more consistent-feeling area of the stringbed that feels sweet. but at the same time, the center doesn't seem to be as sweet as the centers of the rounder-shaped heads of other racket brands.


Spot on description of the Yonex sweetspot cf. rounder-headed racquets by JR here.

zumzool
05-26-2011, 07:56 AM
I am sorry, but I think this larger sweetspot thing is just not true. I have been using the VCore 98 for 2 weeks now and I don't find the sweetspot any larger than any other similar racquets. In fact, it seems a little smaller to me than most.

Your taking one racquet and making a generalization of the sweetspot on all yonex racquets. it's ridiculous.

Buckethead
05-26-2011, 08:13 AM
Your taking one racquet and making a generalization of the sweetspot on all yonex racquets. it's ridiculous.

You can't take his opinion and comments about rackets seriously He makes dumb comments more often than rational ones.

He is defying now the Isometric Head shape, if you can believe, not only that, He is defying the Japanese and engineers designers from Yonex.

In D Zone
05-26-2011, 08:19 AM
Dont' feel anything extra between different head shapes. I own a collection Yonex and other brands (Wilson, Dunlops, Technifibre and Prince).

If you are shanking the ball - it has to more about timing and technique while some were no accustomed to the size and shape of the head.

Sweetspot is about the even compared to other brands. I found string set up relative to playing style and frame stiffness are main contributing factor to one's playin preference.

Buckethead
05-26-2011, 08:31 AM
Dont' feel anything extra between different head shapes. I own a collection Yonex and other brands (Wilson, Dunlops, Technifibre and Prince).

If you are shanking the ball - it has to more about timing and technique while some were no accustomed to the size and shape of the head.

Sweetspot is about the even compared to other brands. I found string set up relative to playing style and frame stiffness are main contributing factor to one's playin preference.

I do, every time I hit with a friend's rackets(not Yonex ones) I notice how good my Yonies are.

I hit with the Youtek prestige mid maybe a few times in the past 2 months and is nowhere near the RDS mid in term of how big the sweet spot is and all other departments. All Head MP rackets have a much smaller sweet spot than Yonex without a shadow of a doubt.

Years ago I demoed a K90 and is not as good as the RDS mid.

I switched from the Volkl DNX 10 to RDS mid and I never look back, even if the DNX 10 had a better feel, but everything else to my game was better.

BTW ZumZool, I bought a SRD Tour 95, so I soon will have that one along side the RDS, RQiS 1 tour and R-22.

Power Player
05-26-2011, 08:37 AM
Heck yeah, the Prestige mid has a super small sweet spot. It also has one of the best of all time, but you obviously have to hit it consistently to enjoy it.

"He is defying the Japanese and engineers design from Yonex." - I appreciate the dramatic impact in this statement..lol..

"Years ago I demoed a K90 and is not as good as the RDS mid."

You are most likely in the minority here.

Buckethead has serious passion for yonny.

Buckethead
05-26-2011, 08:44 AM
Buckethead has serious passion for yonny.

I do like them a lot, just as much as i like Sony, Ferrari, Mercedes, Gibson and Marshall.

Brands like these make better products than other competitors that is why I like and tend to stick to the higher end quality products.

Power Player
05-26-2011, 08:46 AM
Gibson and Marshall are 2 wonderful brands that I own myself.

But I also own Fenders as well..lots of great stuff out there.

In fact as a guy who was getting free Gibson and has tech support for life from them, I can tell you that their quality was not always great. There were many years in the mid 90s and up where things started going real bad.

Happens with everything.

JackB1
05-26-2011, 08:49 AM
Your taking one racquet and making a generalization of the sweetspot on all yonex racquets. it's ridiculous.

No I am not. I just mentioned the last 98" I played with. I have tried dozens of 98" racquets and all I am saying is the Yonex shape doesn't
seem to make a noticeable difference in the sweetspot size.

JackB1
05-26-2011, 08:50 AM
You can't take his opinion and comments about rackets seriously He makes dumb comments more often than rational ones.

He is defying now the Isometric Head shape, if you can believe, not only that, He is defying the Japanese and engineers designers from Yonex.

Please keep your insults to yourself.

I am not "defying" anyone. I am giving my personal opinion.

Buckethead
05-26-2011, 08:53 AM
Gibson and Marshall are 2 wonderful brands that I own myself.

But I also own Fenders as well..lots of great stuff out there.

I have a 2 Gibsons Les Paul(electric), 1 Fender (an unique one with 2 double di marzios and a single coil in the middle) , 2 Ibanez(one Prestige) , and a Marshall JCM 900 Half stack( with the speakers replaced), a mini JSX for home practice, and a Mesa Boogie Lone Star.

I am looking to get an Earni Ball guitar, the old white Silhouette and that's it.

Buckethead
05-26-2011, 08:57 AM
Please keep your insults to yourself.

I am not "defying" anyone. I am giving my personal opinion.

I'm sorry if I offended you.

But Tennis Maverick didn't have much patience with you neither based on comments you make.

Anyway good luck with your racket search.:)

JackB1
05-26-2011, 08:59 AM
I do, every time I hit with a friend's rackets(not Yonex ones) I notice how good my Yonies are.

I hit with the Youtek prestige mid maybe a few times in the past 2 months and is nowhere near the RDS mid in term of how big the sweet spot is and all other departments. All Head MP rackets have a much smaller sweet spot than Yonex without a shadow of a doubt.



Now who's making "dumb statements"? Your generalization about Head vs Yonex isn't making your case strong.

You are also correlating the Yonex sweetspot size with the headshape. There is no proof they are related. You may prefer your Yonex's when you try other brands because you are so accustomed to your Yonex's. Head has many racquets with HUGE sweetspots, like the Speeds, the Extremes and the Radicals. Of course the Prestige has a small one. It's a Player's racquet and small sweetspot = accuracy. Larger sweetspot will get the ball back over, but you won't be able to put it on a dime.

zumzool
05-26-2011, 09:01 AM
BTW ZumZool, I bought a SRD Tour 95, so I soon will have that one along side the RDS, RQiS 1 tour and R-22.

Awesome... let me know what you think... I find the sweetspot in stringing to be around 57-58 lbs.... i'm finding the bb melbourne to be very similar. just wish it had a more open string pattern.

JackB1
05-26-2011, 09:02 AM
I'm sorry if I offended you.

But Tennis Maverick didn't have much patience with you neither based on comments you make.

Anyway good luck with your racket search.:)

TM didn't have much patience with anybody. Also he has nothing to do
with you insulting me. I'm sure there are people in your life that don't like you either, but
if I brought their name's into this discussion that wouldn't make much sense either.

Appology accepted. Let's keep this discussion about the topic please.
I think that's great that you are so passionate about Yonex, but I just starting using one so I have a different point of view at this moment. Maybe in the future I will agree with you.

Buckethead
05-26-2011, 04:13 PM
Now who's making "dumb statements"? Your generalization about Head vs Yonex isn't making your case strong.

You are also correlating the Yonex sweetspot size with the headshape. There is no proof they are related. You may prefer your Yonex's when you try other brands because you are so accustomed to your Yonex's. Head has many racquets with HUGE sweetspots, like the Speeds, the Extremes and the Radicals. Of course the Prestige has a small one. It's a Player's racquet and small sweetspot = accuracy. Larger sweetspot will get the ball back over, but you won't be able to put it on a dime.

Since when player's racket has to have a small sweet spot?? I never heard of that, sweet spot has to do with design concentration of materials and weight where it makes the sweet spot.

I am stopping right here with this issue.

I hope you sell the Yonex racket and play with something else and don't be mad and don't take this as an insult, I just don't think you are suitable to Yonex.

tailofdog
05-26-2011, 04:48 PM
Since when player's racket has to have a small sweet spot?? I never heard of that, sweet spot has to do with design concentration of materials and weight where it makes the sweet spot.

I am stopping right here with this issue.

I hope you sell the Yonex racket and play with something else and don't be mad and don't take this as an insult, I just don't think you are suitable to Yonex.
Is there a not suitable list put out by Yonex?

JackB1
05-26-2011, 06:27 PM
Since when player's racket has to have a small sweet spot?? I never heard of that, sweet spot has to do with design concentration of materials and weight where it makes the sweet spot.

I am stopping right here with this issue.

I hope you sell the Yonex racket and play with something else and don't be mad and don't take this as an insult, I just don't think you are suitable to Yonex.

I dont take it as an insult. I take it as nonsense.

Forgive me for not checking with you beforehand to make
sure you think I am "suitable".

After reading some of the things you have written, your
opinion means pretty much nothing to me. You don't even realize
that better players WANT a smaller sweetspot for more accuracy.
It's the same reason why pro golfers use clubs with smaller sweetspots
and the hackers use clubs that they can hit all over the face.

Most of your statements sound like they are just things that you
believe for whatever reason and they aren't based on anything factual.

WilsonPlayer101
05-26-2011, 09:00 PM
Remember Fox tennis racquets? They kind of had a boxy head shape too.

http://i13.photobucket.com/albums/a287/K_K_Bucket/FoxRacquets.jpg

Power Player
05-26-2011, 09:01 PM
Remember Fox tennis racquets? They kind of had a boxy head shape too.

http://i13.photobucket.com/albums/a287/K_K_Bucket/FoxRacquets.jpg

So do the Technifibre Tfights actually as well.

Power Player
05-26-2011, 09:12 PM
Posts are deleted so this made no sense.

Buckethead
05-26-2011, 09:21 PM
Posts are deleted so this made no sense.

no more
discussion.

Timbo's hopeless slice
05-26-2011, 09:28 PM
anyone would think there had been a bit if a drift off topic...

I did try Yonex but the shape freaked me out. It felt like playing blues with a B.C. Rich, perfectly possible but very off putting!

WilsonPlayer101
05-26-2011, 09:56 PM
anyone would think there had been a bit if a drift off topic...

I did try Yonex but the shape freaked me out. It felt like playing blues with a B.C. Rich, perfectly possible but very off putting!

You sound as if you play guitar. Me too. I don't play the blues nor do I play B.C. Rich altho they are kinda cool.

zumzool
05-26-2011, 10:43 PM
No I am not. I just mentioned the last 98" I played with. I have tried dozens of 98" racquets and all I am saying is the Yonex shape doesn't
seem to make a noticeable difference in the sweetspot size.

There are other factors to account for other than just the head shape that influences a sweetspot so each racquet is going to be different. My 95 sq in Yonex Super Rd Tour has a bigger sweetspot than the 98 sq in BB Melbourne. But the 98 sq in BB London has a bigger sweetspot than the Yonex Super RD Tour.

If your talking just head shape than theoretically the sweet spot is going to be the same for the London and the Melbourne and they're not.
Each racquet is different and it's all relative as some racquets are more forgiving than others.

Timbo's hopeless slice
05-26-2011, 10:46 PM
You sound as if you play guitar. Me too. I don't play the blues nor do I play B.C. Rich altho they are kinda cool.

I am a pretty rubbish guitar player, really, but you missed the slanging match over Eric Johnson (no, really!) in this thread I gather? All the post were deleted, quite rightly too...

stevewcosta
05-27-2011, 05:39 AM
I actually started with Yonex, so I never thought any less of them for having a different head shape. Eventually I moved on because the frames were just too muted for my tastes, though I can't say if that was caused by the isometric head.

.

No, the muted feel has nothing to do with the shape. It's caused by the crap materials all manufacturers are using now. Play with an 80s box beam Yonex and the shape is a key factor in an enlarged sweet spot, especially at the top of the hoop. I could hit near the edge and still get a penetrating ball. Simply awesome frames. Now, beams are too wide, too stiff, too round, too muted - and they changed the grip shape - sucks now.

Gorecki
05-27-2011, 05:49 AM
a few considerations to add o the thread:

i have several brands of frames of both Head and Yonex (my two favourites) and i notice that yonex tend to have the SS higher in the stringbed as opposed to prestiges for example which tend to be closer to the throat

yonex are very confortable, but then again, my yonex frames are either vintage yonex or former pro ((joachim johanson), so i cant really say they are all like that now. mine are very flexy!

i like the looks of the boxy head,and it does indeed increase the extension of the mains, so it might be a good idea. i have no problem transitioning between my frames. all it takes is one or two minutes of fooling and im ready to go! but then again, i'm not a pro...

Snauwaert also had isometric head shapes. as well as other more "shady" brands in the 80's!!!

WilsonPlayer101
05-27-2011, 10:29 AM
I am a pretty rubbish guitar player, really, but you missed the slanging match over Eric Johnson (no, really!) in this thread I gather? All the post were deleted, quite rightly too...


Me too. I'm not good at the guitar even tho I been playing for a long time. I am starting up on drums soon though, I'm more natural at that. I don't follow Eric Johnson's music anymore but I tell you the earliest stuff of his is outstanding.

I play tennis better than guitar so I'm more interested in tennis at this point in my life. I'd like to play tennis more. Sometimes I post here every day for weeks because I'm so into tennis. Then I get on this kick where I watch tennis on tennis TV for days. Then I stop. I don't stop playing but I stop watching or stop posting. But I find this board full of helpful info.

I do want to demo a Yonex but I just put in a demo order for four racquets which is the max and none are Yonex. I remember Seles was the big promoter of Yonex, she was big time on Yonex. Now Wozniacki left Babolat for Yonex. She's doing well with the Yonex. Okay she lost her recent match in the French but she has never won the French anyway. She lost in Stuttgart to Julia Goerges but I wouldn't say the change from Babs to Yonex made a difference. Win some lose some but so far she started off with the Yonex pretty strong. Lleyton Hewitt uses Yonex too. I'd like to give that racquet a try. I'm sure you are right it feels wrong.

dozu
05-27-2011, 10:44 AM
Volkl head shapes a slightly boxy as well.

sweet spot exists because there are 'unsweet spots' on the racket, due to the areas (tips/edges) where the strings are shorter and less springy.

so the box shape makes all the string lengths more equal, hence the entire bed feel more or less the same.... it's not a gimmick.

my Volkl 93 has more generous sweet spot than a lot of the 95s I tried.

tennis_balla
05-27-2011, 02:22 PM
Its not a gimmick. If it was a gimmick it would of been dropped a long time ago, they've been making their rackets like that for decades. All Yonex racket are box shaped, including their badminton rackets. Yonex is respected in the tennis industry, but they absolutely demolish all competition when it comes to badminton sales.

The shape of Yonex rackets to me make them play bigger then they really are. I'm talking about feel here. My old RDS 001 Mid's did not feel like a 90 sq in racket. It was quick, tons of control and felt amazing but it wasn't as demanding. I've played in the past with the i.prestige, LM Prestige, Pro Staff 6.0 85 etc and the Yonex frames are more generous on off centre hits and sweet spot. If you don't feel it, maybe you havn't been playing long enough to notice the difference, I don't know.

vsbabolat
05-27-2011, 08:03 PM
Just had a first hit with the Vcore 98D. Nice racquet. Large sweet spot that extends very far north. Had very good stability and ball pocketing from the string bed. Very good vibration dampening.

vandre
05-31-2011, 09:52 AM
a few considerations to add o the thread:

i have several brands of frames of both Head and Yonex (my two favourites) and i notice that yonex tend to have the SS higher in the stringbed as opposed to prestiges for example which tend to be closer to the throat

yonex are very confortable, but then again, my yonex frames are either vintage yonex or former pro ((joachim johanson), so i cant really say they are all like that now. mine are very flexy!



i'm glad you said that about the sweetspot, g! i've also noticed that it seems like the pros who play with yonex sticks wear off the stencil higher in the stringbed more than they wear off the lower stencil (okay so i only notice that when i can pry my eyeballs off kirilenko, but that's a different thread!). it makes me think that they know something and like i said it feels better to me hitting higher in the head. and now that my buddy g says it too, that just cinches it!

Mr. Hokey
05-31-2011, 12:03 PM
I've been using yonex racquets for the last three years, RDS-001 mids 2008 ver. and currently the RQiS Tour XL 95s, and I'll have to agree with some of the previous comments that the sweet spot on Yonex racquets are definitely unique. They are, to me, larger than other brands of racquets with similar head sizes, but they don't have as pure a sweet spot. It's a bit of a tradeoff I suppose. I used the first version of the RDS-001 in high school, and 2008 model definitely improved on it. The newer version has a truer sweet spot, still large for its class, but none-the-less more solid.

For the majority of my tennis career I've stuck with mid-sized frames. Having used the Prostaff 85, PC600, and Prostaff 90, I've recognized how much smaller their sweet spots are compared to the RDS-001 mid. Granted, when you nail their sweet spots, you are rewarded with sublime feel and control while the RDS would just let you know that you didn't screw up too royally.

Long story short, having used multiple brands of racquets, I must concur that Yonex racquets do appear to have larger sweetspots relative to that of similarly sized competitors. I also agree with the other posters that using a Yonex is an acquired taste. It's not for everyone and it's often difficult to make the transition between brands.