315 degree layout maybe? try this :
http://www.rollrite.co.uk/secrets.php?id=11"The ball should deliver a smooth, hard arc on the backend, even when release mistakes are made. The amount of hook is generally the same, and the ball follows the same path, even if you attempt to 'hit it a bit harder' or 'back off' the release."
i use it on a ball i use for dry conditions or over/under conditions(purple buzzsaw 1inch pin)
Edited on 4/7/2004 1:44 AM
Edited on 4/7/2004 1:54 AM
Edited on 4/7/2004 1:59 AM