Lateral Pitch toward the palm would theoretically make you stay in the ball longer.  I would look at the bevel.  In many cases too much bevel will cause the ball to come off your hand early and it is typically overlooked.

Sounds like I was way off in my thinking, but that's the only measurement that shows a difference. I am surprised though to hear that left lateral is toward the palm for a left hander... Didn't remember it that way...

Opposite for right handed bowlers.

For a left hander, forward is toward the palm reverse away from palm. I think of these as "vertical" pitch.

Left horizontal or I suppose you are referring to as "lateral" is toward the palm/pinky finger; right horizontal/lateral is away from the palm.

The easiest way to see it is to think of a ball sitting with the holes turned up. Put your bowing hand in it.

Rico, I wish you had the brainpower to see how confusing you make a simple question. I spend my days simplifying answers for people, so usually am a stickler on this point, o great one.... You've never had the ability to admit when you relate a confusing answer. As I've indicated before, why not just shut up and stop replying to any topic I submit. Please!

CC, ball with holes up is the answer. I would typically relate to the ball in my hand, not with holes on top. Makes all the sense in the world that way. Since left = palm, and towards palm = stay in the ball longer, then the singular difference I see in the measurements doesn't account for the difference in rotation. I'll re-check measurements and bevel, but I use very little bevel, so not sure that will be a factor.
Thanks

Everyone: please let it go.

We're trying to share information, facts, not force our opinions on everyone else.

I can honestly say I'm done with this site after this...it's not my circus or my monkee...

And this is why we can't have nice things!

I've spoken at length about many a great thing about this sport with visionaries. Bill Taylor being one of them (R.I.P. Bill) Fitting, ball roll, etc etc. Rico is a very smart person. I get his concepts. They're not hard. I know because we've spoken.

What is hard is for someone whom is not in the business of making sure that a piece of equipment fits properly and is going to be the scapegoat if something goes wrong tries to understand advanced concepts about the pro shop world. It's not as simple as "Put holes in ball and throw". I haven't even read what Rico said, but I can tell you that it's not hard to understand if you have a pro shop background.

Now, the questions I would ask. How long is your thumb? What is the lateral on the ball that you get around vs your other stuff? For example, if your lateral is normally 0, is the ball in question 1/8 under (left)? How much forward/reverse is there? What is your span? Do you have an oval in the thumb? IT or regular slug?