The back-up ball "backs up" because of the rotation the bowler puts on it. There is no magical layout to make a ball back up (by itself) unless you release it accordingly.
For bowlers who release it that way, you can lay one out to compliment the release and make it respond more aggressively once it finds friction. A right handed bowler with a back-up release can use balls laid out like a left handed bowler, just for his own grip. Does that make sense?
The other way is to put the Pin and CG in line with the grip center (vertically) and you should have a ball that will go either way depending on which release you use.
Lane Carter, Strike Zone Pro Shops - Salt Lake City, Utah
Brunswick Pro Shop Staff
The opinions expressed are solely those of the writer and not of Brunswick Corporation.
Edited by notclay on 11/12/2011 at 12:22 PM