Hello everyone. Which iron would suit shifting between Bass trombone and tenor? I usually play of a 1G bass bone iron and my range is quite good but soon I might need to double between bass and tenor. My main is obviously bass trombone and that's my preferred weapon of choice but the need to play more means I need to change between bass and tenor. The reason for doubling is playing for 2 bands which is really good experience wise and change of weapon is very good lip wise. My dilemma is stick or twist. Stay with the 1G or change iron with clef. Any help would be appreciated. I'm mainly a Bach boy and have considered a 6 1/2 AL to choose for my tenor work but your opinion matters. Thanks in advance. P.S. The same trombone will be used between Bass and tenor.