RacquetTune - String Factor Values

[Irvin]

I only use RacquetTune as a relative gauge of how much my tension has dropped. I don't even bother to change settings, just note the starting tension, whatever it is then check in a week or so.

Looking at the differences between the lows and highs of various string I would guess many people do not have a clue of how to properly measure string factors. I can't imagine factors that far off. If I were going to use string factors I definitely would not use the factors listed in this thread.

 

[Karma Tennis]

If I were going to use string factors I definitely would not use the factors listed in this thread.

What string factors would you use then and why?

 

[Irvin]

What string factors would you use then and why?

My own because I knew where they came from. String factors are approximately the weight in grams of 1 meter of string. So I would Weight a set and divide the gram weight by the length in meters to come up with my own string factor. If you measure the string factors every one should use the same length of string, under the same tension, and measure the string factors at the same stretch. Good luck with that. Look at the string factor values the range is very varied. They can't all be accurate.

Then again all I want is ballpark and for that the default values work as good as anything. What good is accuracy if you all over the place?

 

[Nicholas Kakatsis]

My own because I knew where they came from. String factors are approximately the weight in grams of 1 meter of string. So I would Weight a set and divide the gram weight by the length in meters to come up with my own string factor. If you measure the string factors every one should use the same length of string, under the same tension, and measure the string factors at the same stretch. Good luck with that. Look at the string factor values the range is very varied. They can't all be accurate.

Then again all I want is ballpark and for that the default values work as good as anything. What good is accuracy if you all over the place?

About this methodology i have the following question:

I take 1m of ZX and weight it unstreched. Then i strech the hell out of it and it reaches 1.25m and I cut out the 0.25m and re weight it. Shouldn't it now appear to weigh less? And assuming i use pre stretched ZX isn' that the right approach?

 

[esgee48]

I would just divide the mass by 1.25 and Yes, the String Factor should be less. Your example is a LITTLE extreme since mono Zyex only goes up by ~5-7% at the tensions I normally use. What I have done in the past is use my own string factors (or keep track of it.) Since I only have a few strings in my inventory, it is fairly simple.

 

[Irvin]

About this methodology i have the following question:

I take 1m of ZX and weight it unstreched. Then i strech the hell out of it and it reaches 1.25m and I cut out the 0.25m and re weight it. Shouldn't it now appear to weigh less? And assuming i use pre stretched ZX isn' that the right approach?

Lets assume you took a 12 m set of any string and it weighed 18 grams. String factor 1.5 end of story, or you could use a default value, or you could trust a stranger. Your choice.

EDIT: another option I'd you hacpve a micrometer. Measure width of string befor and after. Compute % reduction in cross section area of string and reduce string factor the same.

 

[OrangePower]

I don't trust published string factors, nor do I trust myself to measure them accurately.
But all I really want is to track loss of tension over time.
So what I do is, when stringing with a new to me string or hybrid, I set the string factor such that the tension immediately after stringing reads as my reference tension. I know this is not accurate and that the real tension of the stringbed at this point is lower. But it makes it easy to track tension loss from that point, and is completely repeatable over multiple stringings (for the same racquet and strings).

 

[Lucas2015]

Toalson Team Competition string factor? Anybody?

 

[Taita87]

Do you know what’s the string factor of String-Kong yeti 1.17?

 

[ruedacalvo]

Pro's Pro Black Force. // 1.72

Enviado desde mi SM-J700M mediante Tapatalk

 

[ruedacalvo]

Pro's Pro Black Force. // 1.72

Enviado desde mi SM-J700M mediante Tapatalk

Calibre: 1.24

Enviado desde mi SM-J700M mediante Tapatalk

 

[bernardocamara]

Hyper g 16 g?

Enviado de meu LG-H815 usando Tapatalk

 

[CosmosMpower]

I tension off a 10" piece of string at 35-40 lbs and pluck it to measure the string factor myself then use that. I find RT factors are typically too low.

 

[Karma Tennis]

I tension off a 10" piece of string at 35-40 lbs and pluck it to measure the string factor myself then use that. I find RT factors are typically too low.

Can you please elaborate on this?

How do you come up with the actual String Factor number with your method?

 

[Irvin]

I tension off a 10" piece of string at 35-40 lbs and pluck it to measure the string factor myself then use that. I find RT factors are typically too low.

Can you please elaborate on this?

How do you come up with the actual String Factor number with your method?

It's just that simple:

When you pluck the string RacquetTune calculates the string factor and gives you the accuracy, then you names the string and save.

 

[Irvin]

I might also add I used digital calipers when I measured the diameter of the string, and always measure the string under tension. Just because the manufacturer says a string is 1.25 mm does not make it so and when you tension a string if it was 1.25 before it will get smaller as it stretches out.

EDIT: Also the length of the string is the length of tensioned string not the length before tensioning. That's why the strings in the database are so varried not everyone does it the same and most don't do it correctly.

 

[ckhirnigs113]

I asked this on another thread, but this one seems to be more active. Will the string roller/diablo on my Gamma 6002 crank machine negatively affect my string factor measurement since the string rest on top of it on the way to the tensioner? I'm assuming it will definitely change the frequency response of the tensioned string when I pluck it for the app to measure. I've never taken the roller off, but I assume it should be easily removed and then put back on. Anyone have experience taking the roller off a Gamma crank machine?

 

[Karma Tennis]

When you pluck the string RacquetTune calculates the string factor and gives you the accuracy, then you names the string and save.

Ah! I use the Android version which does not have that feature. Will have to grab the iOS version and experiment. Thanks!

 

[ckhirnigs113]

I have very little faith in the accuracy of this string factor measurement. I changed the tension from 30 to 35 then to 40 on my stringer and adjusted the tension setting in the app each time before plucking the string. The string factors measurement was quite different every time. This was all done with same piece of string. I think the only good way to measure string factor if you want accuracy is the gram/meter method.

 

[Suge]

I will post back tomorrow after I use my racquet for after play readings...
I just checked my racquet:

1. Stats:
2. Racquet: Wilson Hyper Carbon Prostaff 5.0 95
3. String:
   1. Mains: Ashaway Kevlar 17ga. pulled tension 76lbs
   2. Crosses: Prince SynGut/duraflex 17ga. pulled tension (with prestretch) 76lbs
4. RacquetTune Says:
   1. Stiffness (DT) is 53.6 N/mm
   2. Tension is 73.9lbs

 

[ShahofTennis]

What I usually do is string a racquet, ping the strings to measure the tension, and adjust my string factor to where RT gives me the reference tension.

 

[newyorkstadium]

I don't have any apple devices. Would anyone be able to provide the values, from the app, for Pacific Classic gut and Toyrna big hitter blue rough? This would be hugely appreciated!

 

[Suge]

I don't have any apple devices.

I it works with Android (what I use)..

 

[newyorkstadium]

I don't have any apple devices. Would anyone be able to provide the values, from the app, for Pacific Classic gut and Toyrna big hitter blue rough? This would be hugely appreciated!

I it works with Android (what I use)..

It doesn't have the list of string factor values on the android app.

 

[Rody]

Please stringfactor for

Ashaway monogut zx pro , volkl cylone 18L , and Tecnifibre HDX Tour 1.24

Android user

 

[Suge]

It doesn't have the list of string factor values on the android app.

Gotcha...

 

[newyorkstadium]

I have quite a large note with measurements from the app, when I had access to an Ipad.
@Rody I've been on an Ipad and got the values you were after. The measurements are:

Cyclone -
1.43 1.56 1.69 1.83 1.98 2.13
HDX Tour
1.25 1.36 1.47 1.59 1.72 1.85
Big Hitter Blue Rough
1.5 1.63 1.77 1.91 2.06 2.22
ZX PRO
1.44 1.57 1.70 1.84 1.99 2.14
signum pro poly plasma
1.45 1.72 1.86 2 2.15
technifibre black code
1.43 1.56 1.69 1.83 1.97 2.12
pacific poly force
1.53 1.67 1.81 1.96 2.11 2.27
klip legend gut
1.46 1.59 1.73 1.87 2.01 2.16
yonextour super 850 pro
23 34 45 57 69 82
Prince tour xc
39 52 64 78 92 06
prince premier power
18 28 39 5 62 74
yonex Poly tour spin
45 58 71 85 99 15
Pro red code
46 59 73 87 01 16
babolat hurricane tour
48 61 75 89 04 19
Alpha gut 2000
1.24, 1.35, 1.46, 1.58, 1.71, 1.84
Ardor Sports On Fire
1.26, 1.37, 1.49; 1.61, 1.74 1.87
Alpha gut 2000
1.24, 1.35, 1.46, 1.58, 1.71, 1.84
Ardor Sports On Firea
1.26, 1.37, 1.49; 1.61, 1.74 1.87
S Charge S 3 1.47, 1.60, 1.73, 1.87, 2.01
Ashaway dynamite black
1.34, 1.45, 1.57, 1.69, 1.82
Dynamite natural green
1.05, 1.14 1.24 , 1.34, 1.45, 1.56
Dynamite soft
1.19, 1.3, 1.41, 1.52, 1.64,. 1.76
Kevlar,
1.16, 1.26, 1.37,. 1.48, 1.59, 1.72
Kevlar Plus,
1.15, 1.25, 1.36, 1.47, 1.59,. 1.71
Ashaway liberty
1.39, 1.52, 1.65, 1.78, 1.92, 2.06
Microlegend
1.22, 1.33, 1.44, 1.56, 1.68, 1.81r
Microlegend XL
1.14, 1.24, 1.35, 1.46, 1.57, 1.69
Monogut
1.47, 1.60, 1.74, 1.88, 2.03, 2.18
Monogut ZX
1.45, 1.58, 1.71, 1.85, 2.00, 2.15
ZX PRO
1.44 1.57 1.70 1.84 1.99 2.14
Lux BBO original
1.45 1.58 1.71 1.85 2 2.15
Ballistic polymono
1.38 1.5 1.63 1.76 1.9 2.04
Kirschbsum spiky shark
1.47.1.60 1.74 1.88 2.03 2.18
VS Team
1.24; 1.35, 1.46, 1.58, 1.7, 1.83
Prince Tournament 15l bitsy
1.33, 1.45, 1.58, 1.7; 1.84; 1.98
Ali power,
1.36, 1.48, 1.6; 1.73; 1.87, 2.01
Alu power rpugh
1.39, 1.52; 1.65; 1.78, 1.92; 2.07
Wilson natural
1.31, 1.43; 1.55, 1.68, 1.81, 1.95
Lux timo
1.46, 1.59; 1.72; 1.86; 2.01; 2.16
M2 pro
1.47, 1.6, 1.74, 1.88, 2.03, 2.18
Rpm blast
1.46, 1.58, 1.72; 1.87, 2.01, 2.17
4g
1.45, 1.58, 1.71; 1.85, 2, 2.15;
Vs touch
1.44, 1.57, 1.7, 1.84; 1.98, 2.13,
Ali power rough
1.39, 1.52, 1.65; 1.78, 1.92; 2.07
X one biphase
1.25 1.36 1.48 1.6 1.72 1.85
polystar.energy
1.37 1.49 1.62 1.75 1.89 2.03
Head hawk touch
1.39 1.51 1.64 1.77 1.91 2.06
intellitour hybrid1
1.06 1.16 1.26 1.36 1.47 1.58
Isospeed proffesional
1.29 1.41 1.53 1.65 1.78 1.92
Fxp
1.21 1.32 1.43 1.55 1.67 1.8
Xcel premium
1.29 1.4 1.52 1.64 1.77 1.91
Spinfire maxi power
1.5 1.63 1.77 1.91 2.06 2.22
fibrtour
1.41 1.53 1.66 1.8 1.94 2.09

 

[Znak]

I have quite a large note with measurements from the app, when I had access to an Ipad.
@Rody I've been on an Ipad and got the values you were after. The measurements are:

Cyclone -
1.43 1.56 1.69 1.83 1.98 2.13
HDX Tour
1.25 1.36 1.47 1.59 1.72 1.85
Big Hitter Blue Rough
1.5 1.63 1.77 1.91 2.06 2.22
ZX PRO
1.44 1.57 1.70 1.84 1.99 2.14
signum pro poly plasma
1.45 1.72 1.86 2 2.15
technifibre black code
1.43 1.56 1.69 1.83 1.97 2.12
pacific poly force
1.53 1.67 1.81 1.96 2.11 2.27
klip legend gut
1.46 1.59 1.73 1.87 2.01 2.16
yonextour super 850 pro
23 34 45 57 69 82
Prince tour xc
39 52 64 78 92 06
prince premier power
18 28 39 5 62 74
yonex Poly tour spin
45 58 71 85 99 15
Pro red code
46 59 73 87 01 16
babolat hurricane tour
48 61 75 89 04 19
Alpha gut 2000
1.24, 1.35, 1.46, 1.58, 1.71, 1.84
Ardor Sports On Fire
1.26, 1.37, 1.49; 1.61, 1.74 1.87
Alpha gut 2000
1.24, 1.35, 1.46, 1.58, 1.71, 1.84
Ardor Sports On Firea
1.26, 1.37, 1.49; 1.61, 1.74 1.87
S Charge S 3 1.47, 1.60, 1.73, 1.87, 2.01
Ashaway dynamite black
1.34, 1.45, 1.57, 1.69, 1.82
Dynamite natural green
1.05, 1.14 1.24 , 1.34, 1.45, 1.56
Dynamite soft
1.19, 1.3, 1.41, 1.52, 1.64,. 1.76
Kevlar,
1.16, 1.26, 1.37,. 1.48, 1.59, 1.72
Kevlar Plus,
1.15, 1.25, 1.36, 1.47, 1.59,. 1.71
Ashaway liberty
1.39, 1.52, 1.65, 1.78, 1.92, 2.06
Microlegend
1.22, 1.33, 1.44, 1.56, 1.68, 1.81r
Microlegend XL
1.14, 1.24, 1.35, 1.46, 1.57, 1.69
Monogut
1.47, 1.60, 1.74, 1.88, 2.03, 2.18
Monogut ZX
1.45, 1.58, 1.71, 1.85, 2.00, 2.15
ZX PRO
1.44 1.57 1.70 1.84 1.99 2.14
Lux BBO original
1.45 1.58 1.71 1.85 2 2.15
Ballistic polymono
1.38 1.5 1.63 1.76 1.9 2.04
Kirschbsum spiky shark
1.47.1.60 1.74 1.88 2.03 2.18
VS Team
1.24; 1.35, 1.46, 1.58, 1.7, 1.83
Prince Tournament 15l bitsy
1.33, 1.45, 1.58, 1.7; 1.84; 1.98
Ali power,
1.36, 1.48, 1.6; 1.73; 1.87, 2.01
Alu power rpugh
1.39, 1.52; 1.65; 1.78, 1.92; 2.07
Wilson natural
1.31, 1.43; 1.55, 1.68, 1.81, 1.95
Lux timo
1.46, 1.59; 1.72; 1.86; 2.01; 2.16
M2 pro
1.47, 1.6, 1.74, 1.88, 2.03, 2.18
Rpm blast
1.46, 1.58, 1.72; 1.87, 2.01, 2.17
4g
1.45, 1.58, 1.71; 1.85, 2, 2.15;
Vs touch
1.44, 1.57, 1.7, 1.84; 1.98, 2.13,
Ali power rough
1.39, 1.52, 1.65; 1.78, 1.92; 2.07
X one biphase
1.25 1.36 1.48 1.6 1.72 1.85
polystar.energy
1.37 1.49 1.62 1.75 1.89 2.03
Head hawk touch
1.39 1.51 1.64 1.77 1.91 2.06
intellitour hybrid1
1.06 1.16 1.26 1.36 1.47 1.58
Isospeed proffesional
1.29 1.41 1.53 1.65 1.78 1.92
Fxp
1.21 1.32 1.43 1.55 1.67 1.8
Xcel premium
1.29 1.4 1.52 1.64 1.77 1.91
Spinfire maxi power
1.5 1.63 1.77 1.91 2.06 2.22
fibrtour
1.41 1.53 1.66 1.8 1.94 2.09

How have you listed these string factors, by gauge?

I'm also trying to measure the string factors of my own on the app and it changes wildly — but most likely because I'm doing something incorrectly. When I'm measuring the string length, is it the string under tension from the inside of the clamp to the inside of the tension head?

 

[CosmosMpower]

How have you listed these string factors, by gauge?

I'm also trying to measure the string factors of my own on the app and it changes wildly — but most likely because I'm doing something incorrectly. When I'm measuring the string length, is it the string under tension from the inside of the clamp to the inside of the tension head?

I measure the length from where the string exits the clamp and enters into the tension head. It's the distance of the string between the two surfaces that have it under tension.

 

[Casius_Juventus]

I think working with your own string factor values is the best method, not working with someone else's which may or may not be the same as yours. There are several factors that can change the string factor value such as the tension, length of string, how well the device your using picks up the Ping from the string, the instrument used to ping the string, etc... Someone else may measure a string and have the string length +/- 2 mm where you may be spot on. All stringer don't pull at the same tension especially when you're comparing LO to constant pull.

I couldn't agree more.

 

[Rody]

Thanks for numbers, but i find it strange that for some strings there are 6 figures when there are only 1,2 or 3 gauge ?

 

[Karma Tennis]

Thanks for numbers, but i find it strange that for some strings there are 6 figures when there are only 1,2 or 3 gauge ?

In those situations, some numbers are being assumed using an extrapolation process.

 

[Znak]

Out of curiosity, since the android app has been left in the bin by the devs, is there any way to access the online database without and iphone?

 

[ext2hander]

I just strung with Gamma Live Wire Professional 18. String Factor was not available.

So I started with Live Wire XP SF=1.48, and then edited the SF=1.42 so that the measured tension = tension just strung.
I would think its all relative, and all I need to know is tension loss over time, and when to restring.

For other racquets, the measured tension tended to be higher that just strung on the $5000 machine. Next time,
I will adjust SF to measured tension = just strung tension. Again, tension loss is relative, and an exact value is not needed.

Good enough.

 

[LOBALOT]

I just strung with Gamma Live Wire Professional 18. String Factor was not available.

So I started with Live Wire XP SF=1.48, and then edited the SF=1.42 so that the measured tension = tension just strung.
I would think its all relative, and all I need to know is tension loss over time, and when to restring.

For other racquets, the measured tension tended to be higher that just strung on the $5000 machine. Next time,
I will adjust SF to measured tension = just strung tension. Again, tension loss is relative, and an exact value is not needed.

Good enough.

I think this is a perfect example of why the stringfactor data base is a mess and we need to maintain our own.

There is no way you know that your "tension just strung" is actually what the racquet is at. Clamps slip, you could be stringing with floating clamps, you could be on a crank.

This is why RT suggested the measurement approach in their help page and not the approach you describe here.

I love the perspective though. "The tool is wrong I am right so adjust the tool to my value."

We really need our own database of factors that can be trusted.

 

[Felippe]

Does anyone know string factor value to Alu Power Vibe?

 

[LOBALOT]

Does anyone know string factor value to Alu Power Vibe?

I do not but you could always measure it with a piece of string you have per their instructions on the help page.

 

[valentino_ua]

today I picked up newly strung pfxpmp with head SG 1.3 pink. I requested 27/25 kgs tension.
When I got home and checked with Stringster it showed 65 (29) a bit higher then necessary which is fine I thought.
Then I tried to measure again and changed into a Pro setting not Mp as from 2021 head started to call mp as pro. Stringster showed even more close to anticipated tension of 62 (28).
Upon testing with RT it showed just 18.5 kgs no matter how many times I rechecked… with 30 n/mm bed stiffness…
And the same app showed me 17.2 for YPTP I had to cut out. maybe it wasn’t 17 in reality… however 17 kgs bed felt significantly softer then todays 18.5 and anything else I have strung in the area of 21/22.
Whereas 18.5 feels like it is actually 27/25. Any thoughts?

https://imgur.com/a/dcBXwT7

 

[LOBALOT]

today I picked up newly strung pfxpmp with head SG 1.3 pink. I requested 27/25 kgs tension.
When I got home and checked with Stringster it showed 65 (29) a bit higher then necessary which is fine I thought.
Then I tried to measure again and changed into a Pro setting not Mp as from 2021 head started to call mp as pro. Stringster showed even more close to anticipated tension of 62 (28).
Upon testing with RT it showed just 18.5 kgs no matter how many times I rechecked… with 30 n/mm bed stiffness…
And the same app showed me 17.2 for YPTP I had to cut out. maybe it wasn’t 17 in reality… however 17 kgs bed felt significantly softer then todays 18.5 and anything else I have strung in the area of 21/22.
Whereas 18.5 feels like it is actually 27/25. Any thoughts?

https://imgur.com/a/dcBXwT7

Wow that is a lot of info there to digest!!!

So why don't we start with what the issue is?

 

[valentino_ua]

Wow that is a lot of info there to digest!!!

So why don't we start with what the issue is?

No problem. Just a bit of background

RacquetTune vs Gamma tension tester accuracy

I verified Gamma tensions with RT and here is what I got:

- fxp with 22 tension in Gamma and 17 kgs on RacquetTune
- 25 tension on another Fxp and 20 on RT after 20h of play on initial requested tension 27/25 kgs. RT also says that bed is less stiff then on my newly strung: 28 n/mm and 32 n/mm respectively. I guess I need to restring both?

- then I have Wilson classic which I told them to string at 26, and while Gamma says it’s 28, RT shows 23. I think too low for syn gut on this, low quality strung job? But siffness is ok 35 n/mm.

And finally newly strung prestige 360+ with yonex Ptp hybrid showed 26/27 on gamma while only 22 on RT after I asked them 24 ) however 22 is not too bad for this racquet with 35.3 n/mm stiffness.

Or could be that RT under estimated tension while Gamma overestimates?

 

[LOBALOT]

No problem. Just a bit of background

RacquetTune vs Gamma tension tester accuracy

I verified Gamma tensions with RT and here is what I got:

- fxp with 22 tension in Gamma and 17 kgs on RacquetTune
- 25 tension on another Fxp and 20 on RT after 20h of play on initial requested tension 27/25 kgs. RT also says that bed is less stiff then on my newly strung: 28 n/mm and 32 n/mm respectively. I guess I need to restring both?

- then I have Wilson classic which I told them to string at 26, and while Gamma says it’s 28, RT shows 23. I think too low for syn gut on this, low quality strung job? But siffness is ok 35 n/mm.

And finally newly strung prestige 360+ with yonex Ptp hybrid showed 26/27 on gamma while only 22 on RT after I asked them 24 ) however 22 is not too bad for this racquet with 35.3 n/mm stiffness.

Or could be that RT under estimated tension while Gamma overestimates?

Well first I would toss the Gamma tension tester in the trash as in my opinion the thing is worthless. So lets just start with the you can't use the values from the Gamma for anything.

As far as RT goes and the lower value it is hard to say whether the stringer missed his mark and dropped some tension or if your string factor is not correct. In either case, I look for trends from the tool so if you get 22 this time and 21.9 next time it is strung and 22.1 the next time it is strung you are set. If one time you get 17 after it is strung I would have a question for the stringer.

As RT and tension drops as you play when you restring is kind of personal thing.

 

[valentino_ua]

Well first I would toss the Gamma tension tester in the trash as in my opinion the thing is worthless. So lets just start with the you can't use the values from the Gamma for anything.

As far as RT goes and the lower value it is hard to say whether the stringer missed his mark and dropped some tension or if your string factor is not correct. In either case, I look for trends from the tool so if you get 22 this time and 21.9 next time it is strung and 22.1 the next time it is strung you are set. If one time you get 17 after it is strung I would have a question for the stringer.

As RT and tension drops as you play when you restring is kind of personal thing.

if we rule out Gamma, wouldn’t Stringster be most reliable at the moment? If will double check it on other racquets shortly.
thanks for confirming RT at least gives relative correct. But then it is still not effective as I need to 1) check stringer if he did the job.
How come 1 racquet is close to what I asked for and another totally below? Or I guess it could be that string factor is more correct for one string and not for another? I thought so but it was same SG in all
2) some strings like PP Hexaspin twist became dead without loosing tension, whereas other like YPTP are soft and fresh but loose quite a bit of tension. I thought RT would tell me the stiffness / elasticity is not adequate.
If stringster seems to be correct would it make sense to calibreate RT string factor based on Stringster?

 

[TennisJrDad]

@valentino_ua The most accurate tension measurement device available in my experience is the Stringway Stringlab 2 followed by the ERT300

if we rule out Gamma, wouldn’t Stringster be most reliable at the moment? If will double check it on other racquets shortly.
thanks for confirming RT at least gives relative correct. But then it is still not effective as I need to 1) check stringer if he did the job.
How come 1 racquet is close to what I asked for and another totally below? Or I guess it could be that string factor is more correct for one string and not for another? I thought so but it was same SG in all
2) some strings like PP Hexaspin twist became dead without loosing tension, whereas other like YPTP are soft and fresh but loose quite a bit of tension. I thought RT would tell me the stiffness / elasticity is not adequate.
If stringster seems to be correct would it make sense to calibreate RT string factor based on Stringster?

 

[mattimag]

hello, very late to the party. I just got an Ipad and purchased Racquettune. I can't access the strings database. it says "no internet connection" but the Ipad is Online. is the database not online anymore? can someone tell me the string factor for Head Intellitour 1.25mm? thanks

 

[MaiTai]

Database String Factor says 1.26

IME the Database string factors are all over the place.
If you can, measure it yourself

 

[mattimag]

Database String Factor says 1.26

IME the Database string factors are all over the place.
If you can, measure it yourself

So does database work for you in the app?

 

[esm]

From memory, you can measure your own string factor. Not used the RT for a couple of years though….

 

[MaiTai]

So does database work for you in the app?

Yes

 

[mattimag]

Yes

Oh I see.. I tried uninstalling and reinstalling the app again but still can't access the database. It says no internet connection detected.

I will try to contact the developer to solve this

 

[mattimag]

From memory, you can measure your own string factor. Not used the RT for a couple of years though….

Yes I am trying to understand how. First tries gave me completely absurd results so I have to understand better