kellytehuna wrote:That's actually a common conclusion once people see that the drilling angle doesn't work quite the same on syms. However, the DA system is still effective for syms. The drilling angle on syms allows us to put the CG in favorable positions for balance holes we intend to use. More often than not, you will see us recommend a hole 2" down the VAL from mid line to help pull the PSA from the thumb hole toward the balance hole thus lowering the effective drilling angle getting us much closer to our intended drilling angle.
kellytehuna wrote:I think the nomenclature is pretty clear. The problem is understanding the concept. You will notice that everyone who is comfortable with the concept of the PSA ending in the thumb hole (or very close to it) on syms before the use of a balance hole will ALWAYS make recommendations for a balance hole as well. It's rare to see a layout recommendation for a sym on these boards that doesn't include a balance hole placement as well.
MegaMav wrote:
The FINAL drill angle is relevant in symmetrics.
You will only find the final drill angle with a determinator, or by an educated guess based on experience with a determinator and hole depths.
6 3/4" Pin thru CG is merely a reference line, not the true drill angle.
"The PSA on a drilled symmetrical ball without a balance hole falls 6 3/4" from the true low RG axis about 1/2 from the center of grip line"
My questions are as follows:
Since the drilling angle on a symmetrical ball is chosen to put the cg in a favorable spot as to allow balance holes to be used to achieve the desired ball reaction will the drill angle now be less important in achieving desired ball reaction since balance holes will soon be illegal?
Will the drill angle now be used to determine where the first transition occurs only or is there a way to manipulate the drill angle specifically or dual angle method as a whole to take advantage of the increase in static weights?
With regards to the third quote I am curious as to what effect if any having neither a balance hole nor a thumb hole will have on the final location of the PSA on a symmetrical ball and how much of a change does it have on the true drill angle as opposed to the drill angle of an undrilled ball?
TIA Jason