I may be of some assistance here. A little while back I picked up a used radical cash, great price, low games cover was in really good shape. I picked it up just to see how this ball being marketed as "the most hooking ball ever made" stacked up to my preferred heavy oil/flood balls---Visionary Midnight scorcher, Ebonite Tombstones..I own 2 of each and my centaur amb particle and my immortal solid. I decided to drill the cash up the same way I have many of those drilled up, with a 320 degree hook/set drilling(I need the extra help with the drilling).
The comparison testing was done at the kegel training center in Lake Wales Florida. I bowled on a 41 foot heavy sport shot. The results were surprising and disappointing. The cash greatly underperformed compared to all the rest, it really labored on the pattern to move much. At the time I didn't redrill the ball...but I did decide at some point to tame up the cover as much as possible and heavily polished it. Something about those core specs and that shape that with a 320 degree hook set drilling put on it really tones the reaction down...what I ended up with was a medium - medium light oil ball. Actually shot a 266 about a year ago in league with it. That is why I picked up this year a Xeno pearl..nearly identical specs and many similarities to the cash core, and a 320 hook set on THAT ball gives me even more length than my lane #1 bullet(believe it or not) , but a much more flippy backend than the Bullet.
Maybe he could try redrilling it with a 320 degree hook set drilling, that would tame the reaction quite a bit. The drilling is found here
http://wiki.bowlingchat.net/wiki/index.php?title=Trick_Layout_ExamplesAlthough I am concerned once the new rules go into effect regarding weight holes because that drilling requires one..but I'll cross that bridge when I get to it.
Brad