First review so here it goes. Not sure of the drill pattern, Mason from Plum hollow (southfield michigan)lanes observed while i bowled and drilled them up accordingly. Asked him for two different looks based on the conditions i bowl on and i could not be happier. Used the zone classic in a 3 game over average tourney and averaged about 240. During practice with and without oil don't think i've shot over 220 and probably up to 265 though about 30 games. Seems to be the most consistent ball i've ever used and would suggest this ball to anyone. Had to adjust the thumb hole on the strike zone and was just able to bowl one game with it, 280 though. Like the snap on the end. Both balls have exeptional carry, no corner problems. Oddly enough i have alot more 7 pins then 10 pins (right handed). Oh well. Also have the absolute but have'nt found the right line/condition for it. Does'nt move one time, snaps through the nose the next time. Still working on that ball! Does hit very hard though.