If you look at the last chart on Page 13 of "Track Flare Explained", you will see that your last assumption is not true. For increasing PAP to PSA layouts, flare increases beyond the 3-3/8 distance, until suddenly dropping off. That is how I read it at least. Although it is pretty close to your assumption.
I think the chart basically shows what I was saying.. It doesn't give PSA to PAP distance (which I think is a more accurate description of what motion you will get vs the degree system) but I'm assuming the 10 deg would be closest to the PAP and that shows little flare. Then when you get to 30 and 50 degree you get the max flare.. and then at 70 and 90 the flare goes down again.
It lists PAP to High RG axis. That is the distance to the PSA or MB ... right?
Yes it is. I see what you are saying but I still see the relation.
I would love to see the test done on blueprint without any holes being drilled. The holes change the low RG pin to PAP length depending on the angles so it is hard to see any linear relation.
For example, putting the pin at 3 3/8 from the PAP will not leave the ball at leverage after drilling. It is more around 4" pin to PAP that will leave the ball at "leverage" after drilling. This does depend on pin height in relation to the holes and the initial shape of the core though.
Also, a no hole test with throwbot would also put to rest the CG no matter debate for once and for all. You could put the cg in different positions at release and throw the ball with the same PAP and pin to PAP. This will eliminate any reaction that the drilled holes provide.
