Aris, I would agree for you to go with what you rpeviously discussed with Ex and ten!
Bob, I was recalling my experience with AMF Angle Evolutions, which I drilled many for me and for people in Excalibur Pro Shop in Camelot Lanes, and I had 2 original Angle Evolutions, both of the surfaces out of box, pin below ring on both and cg in the palm. The only diff was the mass bias on one was in my track and the other was just to the right of the thumb, just as the 2 layouts I described above on the Animal for a friend of mine. I saw on the ball with the mb int he track, it reacted less up front but saved a little more for the backend, where the one by the thumb seemed like it started earlier (was great on a fresh shot!) but as carrydown came later on, seemed liked it wanted to hang some 10s on me. I bowled against Carl for 2 years in the Camelot Summer league, and basically was throwing AMF both years, and if he remembers (it has been 3-4 years) by the 4th game (we changed pairs after every game) I would switch to another ball as I would hang 10 after 10. But I do have a faster spped and my track is within 1/4 of my fingers and thumb, so I am end over end all the way.
Clint