Yes, I'm having a repair guy take some tubing off the 3rd slide. Fortunately, he's also a tubist so he'll cut and blow until it's what we need. Kirley - yes, playing in tune is good. Any 2-3 valve combination was not playable with anyone. For a while I worked the 3rd slide using only the 3rd valve ...

I just picked up an old Olds 0-99-41 made about 1971.Your Bach & my Olds look similar. An old Band Repair guy just informed me that the parts with this Bach tuba and Olds are interchangeable.

Does the 2-3 valve combination play in tune on this tuba? Mine is quite flat.