5 1/16 pin to pap is a half leverage position and is very good for length and backend. I would start with this pin to pap. Then the closer you get to the VAL , smaller val angle ,(or the more the finger holes are in the side of the core) the more angular and snappier it will be.. will transition from hook to roll faster and over a shorter distance
the farther from the VAL, greater Val angle will smooth out the backend and the ball will transition from hook to roll slower and over a longer distance.
Going too low , like below the fingers or closer to center grip, could lower the RG too much and actually make the ball want rev up more off your hand and to hook a little earlier.
check out the morich double thumb layout.. use this layout and the mb angle you derive with a 5 1/16 pin to pap and you should have what you want.. maybe go with a 35deg VAL because the longer pin will put the pin closer to the VAL.
Try to find a pin length that would leave the ball legal without a weight hole.. that way you can always put the weighthole in if you wanted to modify the reaction a certain way.
You put this on your cell pearl and I'm pretty sure it will be exactly what you are looking for. The neptune is a little different.. even the ball is for dry it is condition specific and hand specific.. There isn't much of a core or mb to help the ball move or hook. So the more hand the more hook.. If you are on dry dry .. the ball won't overhook but it will kind of burn up hold its line but not hook on the backend... if you have oil up front and clean backends the ball with make a move on the back larger than alot of balls..
Again, this all depends on cover, core, release, speed, and lane condition.
--------------------
16-17 mph,350 rpm,PAP 5 1/2 x 3/8up, HighGame 300 x 3, High Series 782
Book Average 215 / 205,PBA Xperience ave180
Edited on 7/28/2009 4:39 PM
Edited on 7/28/2009 4:45 PM