Back to your original question, 3/8-10 is the only threading I would consider in your situation. Yes, there are some variances, but today's common non-acme 3/8-10 is used on entirely too many cues.
Whenever I get a shaft to try out, it's almost always a 3/8-10. I can fit it on over a dozen cues. Compare that to the Mezz, Schulers, Lambros, Curtec, Schon...
I have several 5/16-14 cues... None really are interchangeable with the other.
Freddie <~~~ been there, don't that
Interesting.
All my 14 thread shafts interchange among my cues. In fact, among my cues they are the most consistent in that matter.
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