I got my Nasty for Xmas and have loved it ever since I had it drilled. It is a 14 lb 2oz ball with a 2" pin, drilled pin under the ring finger, 4 3/4 pap, with a 5/8' balance hole. I am a senior bowler, age 65, ball speed 14 mph and a tweener. The ball goes long and flips nicely at the end. I have no complaints with mine and have been averaging a composite 201 average in four leagues at two differnt houses, which each has a differnt oiling pattern. I cant say how the Nasty would work for other bowlers with higher ball speeds and crankers? Good luck to all and may you always have 10 in the pit.