How are made Revo shafts, layers roll wrapped?
Don’t know exactly, don’t care. https://www.predatorcues.com/technology/revo-technology/ That site will be able to answer some questions easier.
For CF how do you adjust the joint diameter for your preferred size?
FWIW, I like 1.210 - 1.220 range for butt diameter, 12.7-ish tip, but use a large joint, 0.865". Also very little taper 3/4" either side of joint.
smt
Easiest way to answer this is to tell you to look at the differences between Revo shafts. They had a target in mind, and made a shaft to meet that target. Other companies just took their standard tapers and made a range of diameters. There is no right or wrong way to choose, but you’ll find out the carbon shafts are a completely different animal.