In a recent magazine article(I found in PreciseMatt's shop...Bowling Proprietors magazine...(I think).
Ronald Hickland had an article on 16 trick drillings he had used with staffers such as TJ and PA from last year.
It was fascinating(bright guy!).
He had a ton of pin out drillings(intentional) to create special rolls for his guys.
If you can get it! Read it ...good stuff!
REgards,
Luckylefty
PS he said without these special drills ...TO almost can only use symmetricals.
PPS one of my favorite drills puts a 4 inch pin out...way up for me...really gives me the push on a solid on a high friction house but the smoothness of solid instead of jump of pearl at the back.
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Open the door...see what's possible...and just walk right on through...that's how easy success feels..