Yonex quality control...

[zalive]

I guess this is how fake news starts! Variances are part of the manufacturer process, the complaints here are well within reason. 7mm balance is just within the standard for many manufacturers including Babolat. I don't know what Yonex's tolerances are for tennis. But I can't imagine it be less than 5mm.

DR100 is I guess made in China.
However I wonder whether the whole batch of Yonex racquets denoted as 'made in Japan' is completely made in Japan. Or part of it is hairpin from China, then assebled and finished in Japan.

As you say, China manufacturers can deliver tight tolerance if they are paid for this. However there's reason why all the manufacturers (and even Yonex) make racquets in China. This reason is to cut production cost. And you won't cut near as much if you pay for tight specs tolerance.

This is my speculation: Yonex probably makes early batches of their prestige products from their newly released lines in Japan. This is what you get when you pay full price of 200+ USD/EUR per racquet. As prices start to drop the next season, those racquets are not anymore real made in Japan, but instead assembled in Japan from hairpins made in China. So, early buyers may get better quality Yonex, while guys who wait for discounted Yonex racquets like me an my partner get diffferent quality racquets: Yonex with off balance specs, under specified SW, less than impressive energy return and a stiffish feel (at least, those were my impressions and I was disappointed with quality, to say least, as I did have some expectations from this praised brand).

 

[smalahove]

Just bought the two last Vcore Pro 97 310s @TWE, and got the specs:

racket number : Weight Swingweight Balance

1. 310,8 281 30.5
2. 310,1 282 30.5

Both have a stiffness rating of 65.

That's pretty good, since my only choice (for two rackets in that grip size) was yea or nay

 

[avocadoz]

The good thing about Wilson though, is that they are all custom made, each one uniquely prepared each with its own specs.

[Q] Crocodile def. [1] Wilson 6-1 6-0

 

[Frans Bleker]

I guess this is how fake news starts! Variances are part of the manufacturer process, the complaints here are well within reason. 7mm balance is just within the standard for many manufacturers including Babolat. I don't know what Yonex's tolerances are for tennis. But I can't imagine it be less than 5mm.

Fake news? I just present facts with a personal judgement, so maby you should rediscover the meaning of fake news. Anyway, it's known that Yonex is better in terms of QC than compared other brands, it's still not perfect though as various batches can differ significantly.

 

[Sardines]

This is my speculation: Yonex probably makes early batches of their prestige products from their newly released lines in Japan. This is what you get when you pay full price of 200+ USD/EUR per racquet. As prices start to drop the next season, those racquets are not anymore real made in Japan, but instead assembled in Japan from hairpins made in China. So, early buyers may get better quality Yonex, while guys who wait for discounted Yonex racquets like me an my partner get diffferent quality racquets: Yonex with off balance specs, under specified SW, less than impressive energy return and a stiffish feel (at least, those were my impressions and I was disappointed with quality, to say least, as I did have some expectations from this praised brand).

That would make sense IF a further run of racquets are needed. Doesn't seem to be Yonex's way, since they dropped the SV/DR98+ off the face of the earth. even from their own older online catalogs, like it never existed. They make batches based on projections and IF it sells well and the factories in japan are at capacity, then maybe they'd throw it to China.

Fake news? I just present facts with a personal judgement, so maby you should rediscover the meaning of fake news. Anyway, it's known that Yonex is better in terms of QC than compared other brands, it's still not perfect though as various batches can differ significantly.

It's not an attack at all. I'm just trying to say the variances are within normal parameters. I'd send it back if it doesn't meet your requirements.

 

[styksnstryngs]

Uhmmm what..."good thing about Wilson though, is that they are all custom made" ~ from where the heck do you get this ~ or is this a joke?

Doesn't Wilson build the mold, then in China raw materials are pumped into a machine, and out pops millions of the exact same racquet?

Whoosh

 

[NuBas]

 

[PrinceMoron]

3 hours’ play with a DR 98+

Just can’t take the heat....
Blast RPM @ 55
Indoors on carpet so the balls were flying but still not what you have come to expect

Spent the refund on 12 pairs of Thorlos - they are built like tanks or how Yonex used to be

Actually I think the issue is with the plus version not being able to stand the impact when you really get it moving. The feel just encouraged really mashing the ball


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[GBplayer]

Actually I think the issue is with the plus version not being able to stand the impact when you really get it moving. The feel just encouraged really mashing the ball


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So strong, very impressed.

 

[AMGF]

3 hours’ play with a DR 98+

Just can’t take the heat....
Blast RPM @ 55
Indoors on carpet so the balls were flying but still not what you have come to expect

Spent the refund on 12 pairs of Thorlos - they are built like tanks or how Yonex used to be

Actually I think the issue is with the plus version not being able to stand the impact when you really get it moving. The feel just encouraged really mashing the ball


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Unless you post a vid of yourself hitting 130+mph serve I firmly believe you either got a manufacturing defect or a dropped frame.

So I guess that you actually really believe you are too powerful for these frame? Lol

 

[West Coast Ace]

Unless you post a vid of yourself hitting 130+mph serve I firmly believe you either got a manufacturing defect or a dropped frame.

So I guess that you actually really believe you are too powerful for these frame? Lol

Agree. Or the box it was shipped in to the place he bought it from (he created his own thread a few weeks ago complaining) was dropped and that stick took the brunt of it. He also left out the part that he bought 4 and (apparently) the rest are fine. I’ve worked in automotive and aerospace - these composite materials are tricky; I’ve seen parts scrapped because the technician takes the parts out of the oven (autoclave to be precise) too early/late or the oven temp is a bit off.

 

[PrinceMoron]

Unless you post a vid of yourself hitting 130+mph serve I firmly believe you either got a manufacturing defect or a dropped frame.

So I guess that you actually really believe you are too powerful for these frame? Lol

Well I broke a Head Graphene Speedpro at the O2 speed camera serving competition in front of some very impressed 12 year olds.

Hey, we can play tennis Top Trumps if you like, but unless you have smashed a Wilson Profile I am not scared.

Dropping a frame will never damage it there and Yonex don’t do manufacturing defects.

So no I don’t believe I am too powerful for the DR 98+, and though I can serve big, it is not something I try and do with a Volkl PB Mid leaded up to 397g

Just think the XL DR is a little tinny and prone to breaking. Some frames just are. Prince Woodie just delaminates and cracks right through, prestige Classics go at top of the throat, Arthur Ashe Competition separates out the metal and carbon.. how far back do you want to go?

Last week my opponent tried to catch a serve that was out and gave himself mallet finger, where the tendon snaps and the finger concertinas. Anything will break if you hit it wrong.


I have one listed for sale, you can buy it and if it arrives broken you can be sure it happened in the post. Sounds fair to me


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[FedLIKEnot]

The local shop owner swears by Yonex. Mostly cause he also tunes racquets and states Yonex are by far the easiest. With my PS 95s I got lucky all within 4 grams across 5 of them and balance points within 1.5 points. But he has shared some horror stories especially with Burns and Blades.

 

[PrinceMoron]

Agree. Or the box it was shipped in to the place he bought it from (he created his own thread a few weeks ago complaining) was dropped and that stick took the brunt of it. He also left out the part that he bought 4 and (apparently) the rest are fine. I’ve worked in automotive and aerospace - these composite materials are tricky; I’ve seen parts scrapped because the technician takes the parts out of the oven (autoclave to be precise) too early/late or the oven temp is a bit off.

Thank your lucky stars I was not really annoyed or I might have got a keyboard out and started typing.

I put up a google site after someone sold me a fake k90

https://sites.google.com/site/sixonetour90/

Took the guy to court and he was stupid enough to perjure himself. Had also been importing fake Calloway clubs so got what was coming to him



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[GBplayer]

Last week my opponent tried to catch a serve that was out and gave himself mallet finger, where the tendon snaps and the finger concertinas. Anything will break if you hit it wrong.


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Do you warn your opponents not to try and catch serves If they are out?

You could leave yourself wide open to legal action if you don't .

 

[NastyWinners]

Is freakin EPIC!

Bought a used one in the classifieds and 2 new ones from TW (sequential serial numbers). They all have the same exact weight, within 1mm apart for balance and 3sw points (measured manually TWU method).

I didn't ask for the TW matching service. Maybe I just got lucky, but I thought it was damn impressive. Big thumbs up to Yonex.

That's why they are the best. I bought a new one in April and then another new one in May as I made the total switch to them (now I need to get another 1-2, but anywho). Both are same weight, balance, SW. Couldn't be happier with their QC.

 

[kimguroo]

Just got one more Yonex Regna 100.
Straight to scale.
+ or - 3g might consider good quality control.
As usual from Yonex’s top quality line, 295g spot on.
No doubt about Yonex quality for me.

 

[EasternRocks]

Super awesome QC, but has anyone gone the extra mile to really dial in their frames to be identical if they're off 1 gram in static weight?

 

[McLovin]

Super awesome QC, but has anyone gone the extra mile to really dial in their frames to be identical if they're off 1 gram in static weight?

I have, but it's not that I'm super-anal about things like that. I just figure since I'm already customizing my frames (replace base grip w/ a thicker Tecnifibre, replace butt cap w/ Wilson), I may as well sync the static weight & balance while I'm at it.

If I didn't have to take off the grip & butt cap, I'd probably just string them up & go. That's what I did w/ my Fischers & Pacifics years ago.

 

[MixedMaster]

I have two older vortex 100's and the new one I received for the play test. I weighed the new one as soon as I strung it and it was the exact same as my older two racquets. The only tinkering I'm going to be able to do is maybe add some lead and see if I like them a little more punch.

 

[jalapeno74]

Just received my second VCP97HD and this is one is quite bit off-spec. 314g instead of 320g and 10pts HL.

The other one that I have is 317g with 10pts HL.

Find it a bit odd to be honest. This is the first frame from Yonex I received that was 6g off

 

[Sardines]

Was yours a jeweler's scale? Or a generic digital scale? Like Yonex manufacturing, most kitchen digital scales have a +/- 1-2g variance. So 6 could be 5 etc. Still even if 1g off manufacturing tolerances, if it's 3g from your old racquet, that's actually pretty good, no? Unless swing weight is totally off?
If you feel it's out of spec, send it back.

 

[jalapeno74]

Kitchen scale
You are right, a difference between the two of 3-4g is not that bad.
Have not looked at the swingweight in detail by now.

Still, that variance is not what I‘d expect from Yonex to be honest

***UPDATE*** Swingweight seems fine, I'll keep it