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"

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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.

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!!

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

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?