It doesn't say that covering the thumb hole with the palm isn't allowed, it says that it doesn't count as "Gripping". The guideline is actually to have the palm cover the thumb hole so that the unused Thumb Hole is drilled in the correct place where it should be.
Hmmm... So only bowlers using their thumb are allowed remove two large cores radically affecting the ball's differential? (a.k.a.MOtion Hole drilling, Double Thumb, P3 gradient holes etc..?)
I'm probably going to surprise some folks by standing up for the 2 handers here, but this rule change smacks of "You can do something we can't, so we're changing the rules to disadvantage you."
Not according to the current rulebook on the TBA website. USBC allows 3oz., TBA & WTBA are both 1oz. I was under the impression it had been changed as well, but apparently not - or the websites are out of date, which is possible too.Robbie, I believe that top weight rule has been changed already. It is 3 oz max. This just something that I saw during a discussion on another bowling forum.
If that were the case, they would make them leave the thumb in. Without a thumb, two handers are allowed to flip the grip over (pitches permitting) and can drill another set of finger holes in the ball, provided both sets are statically legal, allowing four different layouts on the same ball. What was that about "You can do something we can't"?
Not according to the current rulebook on the TBA website. USBC allows 3oz., TBA & WTBA are both 1oz. I was under the impression it had been changed as well, but apparently not - or the websites are out of date, which is possible too.
That all works well unless you are fussy about little things, like the fingers being remotely close to fitting. It's a non sequitur.If that were the case, they would make them leave the thumb in. Without a thumb, two handers are allowed to flip the grip over (pitches permitting) and can drill another set of finger holes in the ball, provided both sets are statically legal, allowing four different layouts on the same ball. What was that about "You can do something we can't"?
All I am saying is the current TBA rulebook specifies 1 oz. So does WTBA.Robbie I've contacted TBA several times in the past to clarify 2 handed drilling specs, having drilled many balls for 2 handers. Vaughan White twice referred me to the 2 handed spec page in the USBC rulebook, assuring me that "whatever they do, we do" when referring to 2 handed rules. Since then I've always used the 3oz. If using no thumb, some fingerholes would have to be 3" + deep on higher topweighted balls if bringing it back to 1oz
http://usbcongress.http.internapcdn...andspecs/pdfs/2012-equip-and-specs-manual.pdf relevant info is on page 8/9
Hi Dousty,
I believe the intent of the rule is good. Gripping holes are just that - to grip the ball with. If you don't use a hole to grip the ball, it's not a gripping hole so it should be classed as a balance hole.
Having said that, I think a fair compromise would be to allow a ball drilled with a usable thumbhole to be weighed off the centre of the grip assuming the thumb is a gripping hole whether the thumb is used or not. That allows currently legal gear with no balance hole to stay legal, and allows the no thumbers the option on future balls to have either a thumb or a balance hole drilled without restricting layouts too much.
As written, gonna be a whole lotta pluggin' goin' on...