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Author Topic: thumping the thumb ??????  (Read 1369 times)

getuaload

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thumping the thumb ??????
« on: December 18, 2003, 08:44:01 PM »
I have a Army green Carbide Bomb. It has a pin out about 5''
Its drilled kinda like thumb leverage except the pin is over the ring
finger and the cg swung out. 5 x 4 . The weight hole is located on the PAP
the CG is 1'' above the thumb and 1'' out.

When the ball starts to flip it starts thumping. Do you think it may have to much thumb weight. Should i plug the weight hole and move it down to take away some of the thumb weight ?

Any help would be appreciated. Thanks JP

 

JohnP

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Re: thumping the thumb ??????
« Reply #1 on: December 19, 2003, 02:51:53 PM »
getuaload -- Read the replies in the following link.  Don't think the amount of thumb weight has any bearing.  --  JohnP

http://www.ballreviews.com/Forum/Replies.asp?TopicID=39962&ForumID=18&CategoryID=5

Ishmael

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Re: thumping the thumb ??????
« Reply #2 on: December 19, 2003, 03:25:23 PM »
It's unlikely that the ball is hitting the thumb hole down the lane.  It's more likely to be hitting the xtra hole.  Can you look at the oil lines and be sure which hole you are hitting?  If it's actually hitting the thumb hole down the lane then you are either releasing the ball like a full roller or the ball is flaring backwards.

Ishmael

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Re: thumping the thumb ??????
« Reply #3 on: December 19, 2003, 03:54:09 PM »
bobbojimmye, reread the original post.  getuaload stated that his ball hits the thumb hole when the ball starts to flip.  I'm assuming that he means at or near the break point.  This has nothing to do with release (unless he is a full roller).  I am a very high tracker, and I can release the ball so that it comes off my hand clipping the thumb hole and then flares off of it.  This is much different.  If the ball flares over the thumb hole then 1 of 2 things is happening.  Either the track starts out between the fingers and thumb (full roller) and then flares over the thumb hole, or the track starts out like a normal 3/4 roller and then flares in reverse over the thumb.

If he is a full roller, then he needs to use drill patterns that are safe for full rollers.  If not, there is a problem with the ball that is causing it to flare in reverse.

The other possibility is that if he revs the ball quite a bit, a very high flaring core like the Bomb could flare all the way around to the xtra hole.