If I wish to compare chalk A with chalk B, what is the best way to remove chalk A?
I would try chalk-A with cue-A, and chalk-B with cue-B.
Same scenario using shafts.
Shaft-A, chalk-A, shaft-B, chalk-B
This systems eliminates the chalk removal issue.
This is a good start, but then youd be compelled to use chalk A on Shaft B and vice versa.
This way you'd only have to remove once. Use a little 99% alcohol and a tissue and wipe chalk away -- i dont see muchj wrong with that. The results wouldn't be biased by cue that way. Masters is the best btw![]()