Posted by Richard on December 22, 2001 at 10:27:26:
In Reply to: 5th valve on your 4th posted by Patrick on December 21, 2001 at 19:17:31:
Matt Walters recently added a dog-leg 5th to one of my tubas, and it blows more freely and securely throughout its range than it ever did in its original 4 valve incarnation.  I think it has as much to do with the intrinsic potentials of the instrument, as well as how the work is done.  Also Matt strongly advised a Yamaha rotor for the 5th valve for overall design and quality considerations.  I took his advice.  I've had this instrument for a long time, but since I got it back, it's a continuing revelation.