I ask because it fits well into my large bore 0.547 inch Blessing B88 (similar to Conn 88H I think) but it "wobbles" in my Bach large bore tenor. Would that suggest that this MPC is a Remington shank? I picked it up used many decades ago from a box of loose mouthpieces.
The reason I am confused is because I have a Bach 1/2 G mouthpiece--bought new decades ago-- that does seem to fit securely into both trombones--B88 and the Bach--and so I'm wondering how the 1/2 G fits well in both horns but the 4G does not? Maybe the 4G is just worn?
What info from me would help you help me? Thanks in advance!
