ACTUAL PITCH vs PERCEIVED PITCH

[bowlersam]

Hey guys. Here is an observation and few questions.

When we drill the Fingers with 0 Forward or Reverse, the hole is directed towards the center of the ball, and even when we do not dial any pitches in the jig, the hole innately has a forward pitch to it. Correct or no?

If that is correct, then how much is that pitch in a 31/32nd of an inch hole, 2 inches deep?

How much Reverse would be needed to make it Actual 0 pitch?

The ball is roughly 8.5 inches in diameter. If we pitch the hole 1 inch Reverse, than the center of the hole will travel 1 inch away from the center of the ball, 8.5 inch below the surface. Right?

Since we only insert the tip of the finger upto the first knuckle, which is actually  1/8th of distance from surface to the center of the ball. Correct?

So how much Reverse we actually moved?

Therefor, IMHO, when we make increments of 1/16th of an inch in the pitches, it doesn't mean much, or let me say that it shouldn't mean much.

Further, Power Lift inserts have a nub which again has a builtin pitch to it, to add to innate Forward Pitch. Right?

So the question is this.

What amount of reverse pitch would be required for a bowler, 53 years of age, who can only bend his first knuckle to about 60 degrees, in order for him to feel the ball with the pad of his finger tips? 

Pro Shop Gurus are requested to please guide.

Thanks

[itsallaboutme]

Measuring pitch off the center of the ball is the standard which is used.  Don't make it any harder than it needs to be.  A better way to think about it is to look at the relationship of pitches to the span.  Two bowlers with different size hands but similar flexibility are probably not going to be using the same pitches.

To answer your last question, probably about 3/8".  That would be a good place to start.

[JohnP]

There are three ways to adjust a grip to accommodate stiff finger joints, add reverse pitch, shorten the span, or a combination of the two.  The best way to determine what works for you is to find a driller that has a Jayhawk-type adjustable fitting ball and adjust the spans and/or pitches until you like the feel.  --  JohnP

[itsallaboutme]

Bowlersam is in Pakistan with very few tools.  everything for him is going to be by trial and error.

[bowlersam]

Measuring pitch off the center of the ball is the standard which is used.  Don't make it any harder than it needs to be.

That may be right, but I'm trying to understand and learn and my observation is correct.

There were times when Stretched Spans were a norm, not anymore. When hitting up the ball was good. Not anymore.

There were times when dropping the shoulder was a No No. Not anymore.

And so on and so forth.

Constant innovations and deviation from what everyone was doing got bowling to where it is now and the trend should continue.

To answer your last question, probably about 3/8".  That would be a good place to start.

Thanks. That's the answer I was looking for.

Bowlersam is in Pakistan with very few tools.  everything for him is going to be by trial and error.

That's true, unfortunately.