How do know if my span is too wide?

[ytlas]

It's the pictures in this thread. In Taylor's FADABB you can refer to pages 23-28 where he shows how to check for offset and how to adjust

[bowl1820]

It's the pictures in this thread. In Taylor's FADABB you can refer to pages 23-28 where he shows how to check for offset and how to adjust

Okay I see what your looking at, your referring to how the joints appear in relation to each other (the RF hole isn't visible).

Now just because the ring finger joint is lower than the middle finger joint, doesn't necessarily mean the RF. span is shorter than the MF. span.

According to Taylor's FADABB he says

1-If the joints are aligned with each other, the actual RF span should be 5/16 longer than the MF span. (Page 24)

2-If the RF line is 1/16 shorter than the MF line, the RF span is 4/16 longer than the MF span.

3-If the RF line is 2/16 shorter than the MF line, the RF span is 3/16 longer than the MF span.

4-2-If the RF line is 3/16 shorter than the MF line, the RF span is 2/16 longer than the MF span.

etc.

The spans don't become equal until the RF line is 5/16th shorter than the MF line (Page 26), you have to have a difference of at least 3/8" before the ring finger span becomes shorter than the middle finger span according to his book.

Using my grip as a example:
My middle finger span is 4 1/4
My ring finger span is 4 3/8

The difference in the RF & MF lines on me is 3/16ths.

So according to Bills book my ring finger span should be 2/16" (1/8th) longer than my middle finger span and it is.

My RF span is still longer than the MF span and it is not stretched and both finger pads are applying equal pressure during the swing.

The point is just because the ring finger/joints look shorter than the middle finger, doesn't necessarily mean the ring finger span is shorter than the middle finger span.

The reason the ring finger span is usually longer than the middle finger is because the ring finger is farther away from the thumb than the middle finger is.

[ytlas]

The span you use is 1/8" longer on the ring finger than the offset check would recommend. Now, according to your old drilling card, your ring finger has 1/16" more reverse in it so you have to take that in consideration on adjustments in the span. I figure that adjusts to about 1/16" difference between what your span/offset check and Taylor's figures.

[bowl1820]

The span you use is 1/8" longer on the ring finger than the offset check would recommend.
Now, according to your old drilling card, your ring finger has 1/16" more reverse in it so you have to take that in consideration on adjustments in the span. I figure that adjusts to about 1/16" difference between what your span/offset check and Taylor's figures.

No, it's not. First if you clicked on my grip link, that's not my old drilling card That's my new one.

Yes, when changing linear pitches from your starting pitches you usually adjust span (but that's not set in stone).

Okay lets say your right, my ring finger span is off by a 1/16th, that still does not make my ring finger span shorter than my middle finger or the span 1/8" too long.

As I said in Taylors book he says the spans don't become equal until the RF line is 5/16th shorter than the MF line (Page 26), you have to have a difference of at least 3/8" or more before the ring finger span becomes shorter than the middle finger span.

Let's try this

A bowlers middle finger span is 4", His "offset" lines are aligned with each other. What should his ring finger span be according to the book?

is it: 4 5/16 or 3 11/16?

Heres from the book:


One thing to remember, While Bill Taylors book is still a good reference it's dated and while using your finger's differentials to double check the approximate fit it's just a starting point and not gospel for the final fit.

[ytlas]

4 5/16 Everyone at Western Columbia Pro Shop and Columbia Bowl Pro Shop fit per Taylor's book. He was a little eccentric but a good guy. His nickname was "Gus" but I never knew why.

[bowl1820]

4 5/16 Everyone at Western Columbia Pro Shop and Columbia Bowl Pro Shop fit per Taylor's book. He was a little eccentric but a good guy. His nickname was "Gus" but I never knew why.

Okay so it didn't make ring finger span shorter than the middle finger.

And that is what bill taylor offset check shows, how much longer the ring finger span should be than the middle finger span.

The ring finger span won't be shorter than the middle finger span unless the offset is 3/8 or more difference and most won't have that much offset.

So like I said most peoples ring finger span is longer than their middle finger span.

Bill Taylors offset gives you away to check how much longer as a way to double check the span measurements made.

[ytlas]

Okay lets say your right, my ring finger span is off by a 1/16th, that still does not make my ring finger span shorter than my middle finger or the span 1/8" too long.

BTW I don't believe I stated that your ring finger span should be shorter than your middle finger. Could you point it out?

[bowl1820]

BTW I don't believe I stated that your ring finger span should be shorter than your middle finger. Could you point it out?

No you didn't come right out and say your ring finger span should always be shorter than your middle finger.

Looking at your before and after pictures, I can't help but notice that your ring finger offset (to the middle finger) in the pictures is short.Many PSO measure and drill the ring finger 1/16"-1/8" longer than the middle but that's not always corect even if it's fitted that way.

But to me this kind of gave the impression that it was saying that if the "offset" of the the ring finger is shorter, then the span of the ring finger must be shorter than the middle finger.

If that's not how you meant it, I'm sorry.

[LOUVIT]

here is a picture of my ring finger after the move.

[ytlas]

here is a picture of my ring finger after the move.

Looking good