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Hole 2" down the VAL vs P3/P4

Posted: November 24th, 2011, 11:31 pm
by TOP5
I know the hole 2" down the VAL is used to move the PSA but what does it do to core dynamics compared to P3/P4. according to this chart from storm it increases differential. http://www.stormbowling.com/drill-specs ... Stikes.pdf Has someone created a chart that shows the differences between (2" down the val) and P3/P4?

Re: Hole 2" down the VAL vs P3/P4

Posted: November 25th, 2011, 12:41 am
by Mo Pinel
TOP5 wrote:I know the hole 2" down the VAL is used to move the PSA but what does it do to core dynamics compared to P3/P4. according to this chart from storm it increases differential. http://www.stormbowling.com/drill-specs ... Stikes.pdf Has someone created a chart that shows the differences between (2" down the val) and P3/P4?
Very similar to P3, but will move the PSA a lot, which strengthens the effect of the balance hole and lessens the drilling angle. It's the only way to get true small drilling angles with a symmetrical ball. MathIsTruth will tell you he's seen PSAs move as much as 5" using this system.

Re: Hole 2" down the VAL vs P3/P4

Posted: November 25th, 2011, 1:40 am
by MathIsTruth
Mo Pinel wrote: Very similar to P3, but will move the PSA a lot, which strengthens the effect of the balance hole and lessens the drilling angle. It's the only way to get true small drilling angles with a symmetrical ball. MathIsTruth will tell you he's seen PSAs move as much as 5" using this system.
I have indeed... In the virtual world of drilling it takes more time to work with symmetricals because you must find the High RG before determining mass properties. deTerminators are special in the real world!!

Re: Hole 2" down the VAL vs P3/P4

Posted: November 25th, 2011, 2:48 am
by TOP5
thanks guys. I didn't expect a response so soon that's awesome. I agree that makes dealing with symmetrical balls easier to work with. I have a hard time finding a proshop with a determinator near me unfortunately. I would love to experiment with one someday

Re: Hole 2" down the VAL vs P3/P4

Posted: November 25th, 2011, 2:51 am
by scotts33
Good information Steve and Mo. Thanks!