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MikeP
01-06-2010, 11:25 AM
Mo,

If I were to drill a ball with the Pin on track and MB on PAP; would this ball flare at all? I appreciate your posts and have learned many things and cleared several misconceptions that I have heard thru the years.
Mo Pinel
01-06-2010, 11:48 AM
Mo,

If I were to drill a ball with the Pin on track and MB on PAP; would this ball flare at all? I appreciate your posts and have learned many things and cleared several misconceptions that I have heard thru the years.

The answer is NO, unless a small amount of flare is introduced by the weight hole placement. If you place the weight hole at the PSA (MB), there will be NO flare because the PAP is at the PSA. OK?
MikeP
01-07-2010, 05:22 AM
What would the VAL angle be using the Dual Angle method?
Mo Pinel
01-07-2010, 06:21 AM
What would the VAL angle be using the Dual Angle method?

That depends on where you place the pin. You could do any VAL angle of your choice. Since the axis is NOT migrating, the reaction should change very little as the VAL angle is changed. There is very little history with this type of drilling because it eliminates flare. Flaring bowling balls is probably the greatest advancement in core technology in the history of bowling, so why try to eliminate it entirely? This seems to be an exercise in futility!
MikeP
01-07-2010, 07:54 AM
I was more interested in the theory concept of the layout. Was thinking that with a slight modification; it could be used for a "short" pattern where you are forced to play the 'gutter shot".
Mo Pinel
01-07-2010, 08:09 AM
I was more interested in the theory concept of the layout. Was thinking that with a slight modification; it could be used for a "short" pattern where you are forced to play the 'gutter shot".

Sure! An extremely short pattern can require minimal amounts of flare. In that case, I usually recommend a layout like 90 x 1 1/4" x 45 with a P1 hole (if a balance hole is needed). By the way, with very short pin to PAP distances, the angle to the VAL becomes much less important. I generically use 45 degrees to keep the bowtie point above the fingers. Just my thoughts. Theoretically speaking!