You pick a cue builder that builds a cue you like. When I had a shop somebody coming wanting a cue that I didn't like I would politely suggest that they go elsewhere. I am not putting my name on something that I have technical issues with. Might not build a cue I think would be butt ugly either!
The cue builder's name stays with a cue forever. Doesn't matter what mod's are done or how many times it is refinished it will always carry the builder's name.
Most builders have a certain hit. If you like that hit and can get together on other things, have them build the cue. If you want a very different hit you are probably better off to find a cue builder who usually builds to that hit.
When I was designing my shaft taper I tried a sixteen inch pro section like it was claimed Earl was using at the time. Maybe so, but it didn't work with the rest of my shaft design. The whole pool hall heard the snap before I put that one in the garbage can!
Hu