I played a Miraphone 186 5 valve where the 5th valve was 2/3 combination. I have just started playing my current horn where the 5th is 1/2 combination. Being that the 5th valve circuit has two slides, and the inner nested slide has enough room, I am interested to see if such a modification has been done with success. I found that if I pull the inner slide all the way to the tips, and pull the outer slide halfway, I can get the 2/3 combo I'm used to playing.
Any thoughts from the technicians amongst us?
GM