See what trombone players deal with:
This is the
Ergobone. Designed primarily for bass bone players with double rotor inline valves and lots of plumbing. I have never heard a bass bone player ask about weight unless the weight was related to sound. Play the horn with the best sound. Balance is important I agree.
2lbs or 4lbs, trumpet players do not need an ErgoPET just yet
M&C