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corners
02-13-2012, 09:32 AM
Just ran into the Flex Infinity machine from Australia. Measures frame stiffness at 7 different points, top of handle to tip.

http://www.flexinfinity.com/about_us.htm

I would guess this is similar to the kind of equipment racquet engineers use.

Here's a PDF comparison of the Volkl C10 Pro and Organix 10 295 using the machine: https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CCQQFjAA&url=http%3A%2F%2Fwww.stringlab.com%2FVolkl.pdf&ei=_VQ5T5SHDaWpsAL697iZAg&usg=AFQjCNFjjSyLt8XffSvMelPXnTHmDhqyyw

sargeinaz
02-13-2012, 10:18 AM
That's super cool. I'd love to see other sticks measured

Fed Kennedy
02-13-2012, 10:19 AM
Put the vcore95d on there corners! I want to see how they packed the power into the low sw frame.

corners
02-13-2012, 11:49 AM
Put the vcore95d on there corners! I want to see how they packed the power into the low sw frame.

Hah, I wish I had one of those suckers. And I also wish I knew how they packed the power in that vcore while keeping the flex nice and low.

I did compare the flex numbers from that PDF to the TWU power maps for the C10 Pro and X10 295. Guess what? When adjusted for swingweight (326 vs. 319), they have basically identical power potential (rebound speed or ACOR) at all impact locations. The flex numbers show us that Volkl's DNX stuff at 3&9 definitely does stiffen the upper hoop on their newer frames, but the power potential tests shows that this doesn't make any difference to power. I'm sure they feel real different, but if a player were to hit an identical shot with both racquets the shot speed and depth would be all but identical. Racquet technology, go figure.

Fed Kennedy
02-13-2012, 11:52 AM
Hah, I wish I had one of those suckers. And I also wish I knew how they packed the power in that vcore while keeping the flex nice and low.

I did compare the flex numbers from that PDF to the TWU power maps for the C10 Pro and X10 295. Guess what? When adjusted for swingweight (326 vs. 319), they have basically identical power potential (rebound speed or ACOR) at all impact locations. The flex numbers show us that Volkl's DNX stuff at 3&9 definitely does stiffen the upper hoop on their newer frames, but the power potential tests shows that this doesn't make any difference to power. I'm sure they feel real different, but if a player were to hit an identical shot with both racquets the shot speed and depth would be all but identical. Racquet technology, go figure.

Yes but the 295 is way lighter...money for nothing?

Timbo's hopeless slice
02-13-2012, 12:38 PM
another fine product of northern tasmania.

Flex Infinity also do Tomic's strings. (Hi Rod!!!)

corners
02-13-2012, 01:12 PM
Yes but the 295 is way lighter...money for nothing?

Well, if less weight in the handle means more swingspeed, then yes, money for nothing. But opinions and experiences vary on that point. The few studies done on swingspeed show that max swingspeed is limited by swingweight, but not by static weight. This is apparently because the static weight of the racquet is small in comparison to the weight of the arm. If we get above 13 ounces maybe that changes...

I posted a poll about swingspeed and handle weight a while ago, asking what happens to swingspeed if you remove an ounce from a racquet handle (swingweight stays pretty much the same when that is done). That's pretty much the C10 and the X10 295 - swingweight roughly the same, but the C10 an ounce heavier (and more headlight because of that extra handleweight). Of course that's what the 295 is meant to be, an X10 325 with an ounce removed from the handle. They just skip the step of putting lead or whatever into the hairpin and give it yellow paint.

The poll results are interesting (although not many people responded):

http://tt.tennis-warehouse.com/showthread.php?t=387846

Rock Strongo
02-13-2012, 01:51 PM
I'd love to see a Max 200G on it!


Or maybe that's not a good idea since that will literally flex to infinity...

corners
02-13-2012, 02:56 PM
another fine product of northern tasmania.

Flex Infinity also do Tomic's strings. (Hi Rod!!!)

Do you know anything about those strings? I did a search and all I found was his diagnostic machine site.

MesQueUnClub
02-13-2012, 03:43 PM
Just ran into the Flex Infinity machine from Australia. Measures frame stiffness at 7 different points, top of handle to tip.

http://www.flexinfinity.com/about_us.htm

I would guess this is similar to the kind of equipment racquet engineers use.

Here's a PDF comparison of the Volkl C10 Pro and Organix 10 295 using the machine: https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CCQQFjAA&url=http%3A%2F%2Fwww.stringlab.com%2FVolkl.pdf&ei=_VQ5T5SHDaWpsAL697iZAg&usg=AFQjCNFjjSyLt8XffSvMelPXnTHmDhqyyw

Can't access the pdf. you got another link?

Timbo's hopeless slice
02-13-2012, 03:49 PM
Do you know anything about those strings? I did a search and all I found was his diagnostic machine site.

well, mate of mine has a heap of them, been trialling them in his frames, I can probably get hold of some easily enough though, I can ask him myself, he is always at the tournaments as one of his sons is getting pretty darn good..

or you could email him, nice guy.

corners
02-13-2012, 03:52 PM
Can't access the pdf. you got another link?

No, sorry. I got to that PDF via a Google search but I couldn't find a direct link on the site. Try Googling "Flex Infinity Comparison"

corners
02-13-2012, 03:52 PM
well, mate of mine has a heap of them, been trialling them in his frames, I can probably get hold of some easily enough though, I can ask him myself, he is always at the tournaments as one of his sons is getting pretty darn good..

or you could email him, nice guy.

OK, thank you sir.