All the info on this ball says it's an Asymmetrical ball, the drilling directions that come with this ball talk as if the Classic was just a general 2 piece ball, it says nothing about the Mb or drawing a line 6 3/4 from the Pin through the Cg to find the Mb. So, do you simply drill with the Pin 3 3/8 from PAP and stack the Cg straight down as the directions say for medium distance and overall hook or can more fine tuning be done?

The Classic is a y-spinner but has a small intermediate differential (.007) so it can be drilled like any symmetrical ball. 

It would be nice to have a driller that has DeTerminator so you can ascertain the PSA and put a gradient line x hole in the correct position to give you the required drilling angle that you want for your stats. and condition used on.  Plus laid out with correct pin position and VAL angle so you have exactly what you want.