BallReviews
General Category => Drilling & Layouts => Topic started by: River700 on January 27, 2010, 01:44:04 PM
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Hi everyone. I have a 15 lb storm original hot rod with a 3 1/4 inch pin with the pin right under the ring with the cg on top of the thumb hole and a pinch to the right. Well, it does role really smooth, but I would like it to rev up just a little easier than it does. So what size of weight hole should I use and where should I put it? My pap is 5 1/2 over by 3/8's up. Currently it has 1/2 ounce side and 1/2 ounce thumb weight.
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Bowling is fun, enjoy it, don''t hate it
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drill the fingers deeper
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"USBC is concerned that technology has overtaken player skill in determining success in the sport of bowling"
http://www.phxbowling.com/acba
http://www.viseinserts.com/
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Drilling the fingers deeper won't do a thing. Plus, the top weight of this ball is already low like maybe 1 1/2 to 2 ounces? Drilling the fingers deeper will only make it hook sooner not rev up easier.
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Bowling is fun, enjoy it, don't hate it
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Draw a line from Pin over CG 6-3/4 - this is where the Mass Bias is located on asymmetrical cores. If you drill a x-hole (1" drillbit at least 2" deep) on this location you will raise the Differential and give the ball some boost on backend motion.
But make sure that you won´t drill on your track. Maybe you need to adjust the hole to the right. Mark the Mass Bias with a tape and throw some shots to make sure the this position will not be flared over.
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Hi gee, thanks for your input. The core in the hot rod is very mild, like around 3 inches of flair, plus the cover is kind of weak as well. What do you think about a double thumb layout? 3/4 inch hole 1 1/2 inches deep?
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Bowling is fun, enjoy it, don't hate it
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Draw a line from pin through cg 6 3/4 inches to mark a MB location. After that, draw a line from MB to your axis point. Take that length and divide by 3.
EX: Distance from MB to PAP is 6 inches. Start at PAP and on that line, at each 2 inch interval, make a mark. That will give you 4 locations. I would take a bit around 13/16 or 27/64 and drill a hole 2 inches deep in the P3 location. Since you only have 1/2 side and 1/2 thumb, I would not go too big, nor too small a drill bit. Take a medium size and go 2 - 2 1/2 inches deep.
This should help increase the flare by an inch or so. If you need more, go up 2 drill bit sizes until you get the desired reaction.
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Steven Vance
Pro Shop Operator
Striking Results Pro Shop
Red Carpet Lanes
Duluth (NE Atlanta), Georgia
If anyone out there is worried about the scores being too high, try duckpin!!
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Double Thumb Layout is nearly the same like my suggestion or from twohand834.
but you won´t see much different reaction by using a small drillbit or not drilling deep enough.
Both ideas are based on increasing Diff to get more Hook down the lane.
So it doesn't matter much if the ball gets some negative side weight or finger...
Try it - worst case you need to plug it...
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Thanks for the suggestions everyone
Well, the reason why I have it drilled up like it is because I want it to be smoother and for lighter oil just like my too hot that is drilled straight up label. Basically, I really don't need my hot rod to hook more, just rev up a little easier and still be smooth as it is down lane.
I was thinking a double thumb layout, but that kind of makes it rev and hit more on the back. However, because of how weak this ball is, using a 3/4 bit and drilling 2 inches deep might do it.
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Bowling is fun, enjoy it, don't hate it
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I have an x-factor deuce drilled up with pin just next to my ring and a hair up, with the rad at like 4 1/2 from my pap. Well it had like 1 ounce or so side weight. So I tried a 3/4 hole 1 1/2 inches deep 2 1/2 inches from my thumb straight over and it revved a little easier and was more on the backend. But, I plugged it and went with a 5/8 hole 4 inches straight over and it has smoothed it out some.
So if I do a 3/4 hole close to the thumb on the hot rod it might be a little too jumpy on the back, but if I stick it out further like on the val, it might hook more than what I am wanting.
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Bowling is fun, enjoy it, don't hate it
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I have a question. Early in this thread there was talk of drilling finger holes deeper. Lately on all my stuff the fingers especially the ring finger has been drilled so deep I thought they might hit China. On most of the balls I have not gotten any extra reaction and in most cases it's far less than older stuff I've had drilled by a different driller. I get more revs from the older stuff with normal depth holes. Not trying to hijack the thread but does anyone know why this would be done?
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quote:
I have a question. Early in this thread there was talk of drilling finger holes deeper. Lately on all my stuff the fingers especially the ring finger has been drilled so deep I thought they might hit China. On most of the balls I have not gotten any extra reaction and in most cases it's far less than older stuff I've had drilled by a different driller. I get more revs from the older stuff with normal depth holes. Not trying to hijack the thread but does anyone know why this would be done?
sometimes drillers drill the ring finger deeper (for right handers) to take out excess side weight (if they dont want to use a balance hole)
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TDC57, the reason why the depth of the ring finger was drilled like that was to either get the finger/side down so as to not need an extra hole, or to simply make the ball smoother. When drilling a ball, if you drilled the fingers deeper like you stated, it actually is making the core shorter because the deeper holes are removing weight from the top of the core, thus making it have a lower rg, rev up slight sooner and be smoother overall.
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Bowling is fun, enjoy it, don't hate it
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ok let me try to understand......the point is to try and get the ball to rev quicker/easier ......so your considering a double thumb layout which would effectivly make the core taller, raise the rg, slow the spin rate and give it more backend.....But you dont like the idea of making the core shorter, lowering the rg and helping it to spin faster and using surface to get desired length......
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"USBC is concerned that technology has overtaken player skill in determining success in the sport of bowling"
http://www.phxbowling.com/acba
http://www.viseinserts.com/
Edited on 1/28/2010 9:08 PM
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Bluerrpilot, sorry about not being clear, I am wanting to put an extra hole in this ball to help it rev up more and still be smooth on the backend. So what you were saying about the extra hole should work.
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Bowling is fun, enjoy it, don't hate it