I've been playing with a 13lb Storm Diablo. Due to my low rev and heavy carry down at the house I've been playing, I've sanded the coverstock down to 600 grit for the sake of more traction. But what really troubles me is that the ball seems to lose reaction quite quickly. Right after cleaning the ball really hooks, but after just a couple of games I have to move far right and lower my ball speed so that the ball still finds the pocket. I doubt if it's the problem of the coverstock and so I wish to look for a new ball with a much more durable one.

Any suggestions? I've heard that the Activator+ from Brunswick is one of the most durable. But if there's another from a mid-priced ball I would definitely go for that.

Thanks!