MoRich lists the drilling angle first, the val angle second.

"... a 90°drilling, pin 5" from the PAP, 70° to the VAL"

I do not get this stuff...so is there a good driller anyone knows of in the OKC area? The guy who has done my recent work scares me. This was his response to my wanting a stronger drilling on my ball, which had the pin just above and between the fingers, "It really doesn't matter too much how you drill the ball, it is the coverstock that does most of the work." When I researched this drilling on the Hammer website, it said it was a weaker drilling for medium oil, but I bought the ball for heavy oil. He says if I want more hook, to just sand the ball with 400 grit. I do not know how much I trust this guy after reading this website, but he has been in business for over 25 years.

I have two new balls that need drilled. Who should do it? Do I just "pay my money and take my chances"?

Well, he is right. The coverstock (and bowler) combine for probably at least 80% of the reaction of a ball. Core is probably another 15%. Drilling would fill in the other 5. Tweaking the coverstock of a ball is a very good way to alter the reaction to make it do what you want, and anyone who doesn't experiment with different finishes is (IMO) holding themselves and their game back.

The drilling he gave you will usually be a good compromise between length and backend reaction. Since you don't say what ball it was, there's no way to tell if would be for heavy or medium oil - a drilling does not a heavy oil ball make.

That makes me feel a bit better, cgeorg. The ball was a Raw Hammer Pain and is for medium/heavy oil.

My next two balls are both MoRiches (Awesome Hook and Awesome Flip)and there are at least six different suggested patterns for these that seem relevant to me: three for "high Track" and three for "standard assymetrical". Should I just take the sheets and tell him what I want, or just assume he will pick the best one for my style? He knows how I bowl, and my style, speed and revs are very similar to his: high Track, semi-roller, medium/slow revs, medium speed. This is on lanes that are generally heavy, but occasionally medium.