Anyone know where I can find an online manual or what the 5/16ths rule is? I recently picked this up at a center that was going under.  Thanks.

awesome thanks!

When the ring finger line is 5/16ths below the center finger line, the difference on the ball should be zero.

[/quote]

And conversely, if the the creases on the fingers are on the same center line then the ring finger would have a 5/16" rise.

Most people on the bill taylor whell measure both measurements!  But the 5/16 rule is a check to see if the span difference makes sense.

It is performed by laying a hand on a ball and noting the difference in length just like you described if the ring shorter by 3/8 then you have described the process correctly.  The KEY point is did you note the difference while the hand was curved to the ball shape.  NOT Straight out and stretched..

The final test is to note the feel of where the pressure is on the fingers while the ball is swung with the thumb in the ball and where it is on the fingers after the thumb comes out of the ball.

That process is described
http://www.ballreviews.com/drilling-layouts/span-question-t287562.0.html

Regards,

Luckylefty

Htoth,

I frankly find this 5/16 test does not work that well for me and a lot of people.

It is frankly a measure of how far offset your thumb is from your ring finger and the flexibility of the area between your two fingers(middle and ring).

I have found that the final pressure test I believe is going to be the final winner for me and getting my grip to it's final....PERFECT spot!  (he he).

Lately I have been creeping up on it what I perceive as a VERY nice fit and the 5/16 rule I don't believe was the answer.

Regards,

Luckylefty
PS I am a patient man as it took me 10 years before I could swing a golf club properly once!  11 years looking for a wonderful grip feel!  Only part time of course, very part time!