I'm a right hander with a span of 4-1/8" L; 4-1/4" R

3 years ago I dropped from 15lb to 14lb because my finger joints would get sore after throwing more than 3 games.  And sometimes my wrist.  I tried pitching my fingers with 1/4" reverse (away from palm) with no luck.

I'm starting to think maybe there is more to it.  My thumb pitch is 1/4" reverse and 1/4" away (right).  That means my fingers and thumb are spread out from each other like palming a basketball ( I still pitch my fingers with 1/4" reverse).  The lateral pitches on my fingers are 3/8" L and 3/8" R.  When checking my angle on the finger pitch fan chart, I'm at 15 degrees.

I re-measured myself the other day, and my span does appear to have gotten about 1/8" shorter.  I'm still in my 30's & in good shape.  I see no reason why I shouldn't be throwing 15lb?

Any thoughts.  I've been drilling for over 15 years, but I haven't worked in a pro-shop in a while, so I don't fit people anymore.  I feel like a doctor trying to diagnose myself.  I'm going to a local pro-shop for some help, but I wanted to try here too.

Any advise would be greatly appreciated.

Very cool. That is in book two right? I'm ready to pre-order my advanced advanced copy.

Weight issues or issues created from an improper fit can effect in varying ways...that's why I said sometimes it could just be the weight. But realize, when a bowling ball is swung properly, it creates 3-4 G's which increases the weight 3-4Xs...so if the fit is incorrect it increases the feeling of the weight....