Well, I hadn't bowled in a league in over 8 years and didn't know anything about today's equipment. I told the guy at my local proshop I used to throw a Teal Rhino Pro and he suggested the Monster ScreamR...very good suggestion. It's a very similar ball.
My first 6 games with this ball were 248, 247, 218, 238, 279, 255. I'm a lefty and throw 15-16 mph and give the ball a good deal of hand, but I'm sure it would be effective with less revs as well. This ball carries strikes with solid pocket hits and light pocket hits. You can work this ball inside because it slides well and has great backend, or you can play outside and the thing comes roaring back at a sharp angle. I like this ball best on med-dry to medium-oily conditions. When the lanes are bone dry I have to throw it about 17.5 mph to stay left of the headpin. On oilier conditions, this ball works with some good hand and slower speed if roughed up a little. I'm starting to leave more 7 pins than when i took this thing out of the box, but I don't think that's the ball's doing.
The drilling is pretty standard...pin under left ring finger and about 2" from cg.
I highly recommend this ball.