Fuck, I spend 5 days on the beach in FL and you guys start talking bowling while I'm gone? I've been in a league for the past 8 years.
Jason, you should use a 15lb ball, especially if you want to learn how to hook. Unless that's going to wear your arm out after 3 games in a row. My dad actually down-graded from 16lb balls to 15's this year.
Honestly, the ball does all of the work once you release it. It's all about a consistent release and hand position, and getting the ball in the area of the alley that you want it (close to the gutter, etc). I just use a regular bowling motion, and don't purposely add any extra spin or revs to the ball. I just let the ball do the work.
I've got a 15lb. Columbia Action, and a 15lb white-dot for spares/corner shots. Assuming I find another job within the next month or two, I'd like to get a third ball that will hook in heavy oil. I've had problems with that this year.
High Game is a 269, which I had a few years ago. I've had a few 240/250 games, and one 265 since then.
My high series is a 709 (!) that I rolled this past fall. I think my high series is more impressive than the high game. That was a 226,247,236, and I was clean for all 30 frames. If it wasn't a strike, I picked up the spare.