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I turned to the polyball. The Yinhe seamless one. |
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wturber
Premier Member Joined: 10/28/2008 Location: United States Status: Offline Points: 3899 |
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One difference could be internal pressure. Remember that one of the original features of the seamless was that it could be pressurized up to (as I recall) three atmospheres.
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Jay Turberville
www.jayandwanda.com Hardbat: Nittaku Resist w/ Dr. Evil or Friendship 802-40 OX |
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Baal
Forum Moderator Joined: 01/21/2010 Location: unknown Status: Offline Points: 14336 |
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I suppose it could be, but it's nothing I can discern playing with them, XSF, Yinhe, both very good.
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NextLevel
Forum Moderator Joined: 12/15/2011 Location: Somewhere Good Status: Offline Points: 14845 |
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The price of the training/club ball has gone up as well on megaspin.
That said, I am stocked up on XSF balls for the year and it is going to be my primary training ball. |
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I like putting heavy topspin on the ball...
Cybershape Carbon FH/BH: H3P 41D. Lumberjack TT, not for lovers of beautiful strokes. No time to train... |
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roundrobin
Premier Member Joined: 10/02/2008 Location: United States Status: Offline Points: 4708 |
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I just punched a tiny hole on each polar end of a new XSF Sports ball (latest batch) that was not perfectly round with a sewing needle, then performed a bounce test with another new XSF Sports ball fresh out of the box. After releasing both of them at the height of 48" simultaneously, the resulting bounce height is identical for both. So I guess it's safe to say these seamless balls are not pressurized. |
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Current USATT Rating: 2181
Argentina National Team Member, 1985-1986. Current Club: Los Angeles Table Tennis Association. My Setup: Yinhe Q1 / T64 2.1 black / Saviga V 0.5mm red |
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wturber
Premier Member Joined: 10/28/2008 Location: United States Status: Offline Points: 3899 |
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Probably so - for the XSF ball. But you'd actually need to do the same with other brands as well to see if they also fail to differ when punctured. I've been dropping balls using a contraption (trap door made from mousetrap) that should give results pretty close to the ITTF T3 setup and with an accuracy of less than 1mm. I should find two XSF balls that bounce nearly identically and then puncture one and compare using my setup. |
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Jay Turberville
www.jayandwanda.com Hardbat: Nittaku Resist w/ Dr. Evil or Friendship 802-40 OX |
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Pete73
Silver Member Joined: 06/06/2015 Location: canada Status: Offline Points: 602 |
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At Eacheng in China, the Yinhe *** balls (ITTF) are actually at US$4.99 for a box of 6. This is a good price.
http://www.eacheng.net/index.php?act=detail&ID=3980 |
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cole_ely
Premier Member Joined: 03/16/2005 Location: United States Status: Offline Points: 6898 |
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Shipping is pretty rough from eacheng, though.
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Wavestone St with Illumina 1.9r, defender1.7b
Please let me know if I can be of assistance. |
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slevin
Premier Member Joined: 03/15/2012 Location: USA Status: Offline Points: 3602 |
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XSF training poly-balls? Seamless? Good enough for a robot? Where do you buy them?
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Trade feedback:
http://mytabletennis.net/forum/forum_posts.asp?TID=50787 |
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42andbackpains
Silver Member Joined: 10/05/2014 Location: NYC Status: Offline Points: 623 |
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I think Nextlevel is using the regular XSF 3 star polyballs. Dont order the XSF training balls, those wobble alot and dont play well at all. I ordered some XSF 3 star balls from TTNPP about a year ago...and the price still has not changed for a while. http://ttnpp.com/store/ball/798-xushaofa-new-seamless-poly-ball-3-stars-ittf-x-72-39.html ttnpp is a little slow with shipping sometimes.
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Mind is willing, but the back goes out too often :P
OSP Ultimate II 88 grams FH Dianchi D w/ Secret Sauce BH Butterfly T05 Red USATT rating keeps going down |
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