For a normal sanctioned league, is it illegal[spoiler] to use athletic tape around the fingers or to us a an ACE brand wrist support?

If so, what type of bowler's tape would be a good substitute.

-Thanx
-Drew

First welcome to the site Drew.

Nope, it's perfectly legal to use it in any league or tournament. The only thing USBC approves are balls, and whether or not a clean can be used during or before or after competition or at all on a ball.

As for the athletic tape, I recommend against it, speaking from personal experience. The glue bleeds through and can get in the finger holes and can cause all sorts of issues. If you want a tape to wrap around the fingers Vise's Bio-Skin is probably the best bet. It stretches and allows you to still bend the fingers.