I want to follow the rules too and that's what prompted the questions. If you run a Roland style set up many locktite or VC-3 those threaded comps to the threaded barrel, it's timed and it torqued to a specific standard - not something easy to do and undo. It's not the barrel length that gives the edge, my comp with duty ammo is the edge, just wanted to compete with what I carry.
I have a pair of G34s that I ran in the old days in production.
I should have the second gun sent off this week to have it milled for another RM06. I'll just set the second gun up to run in Carry Optics and not mess with the barrel per Chasnojm. I knew that from the beginning but it was about shooting a match with what I had available at the time of the match.