Posted by Rob P-M on January 15, 2002 at 09:18:36:
In Reply to: Dillon AGR posted by T.S. on January 15, 2002 at 07:05:07:
Very positive. I have on on my YFB621 F tuba and it has given me significantly better control over the sound of the instrument, attacks, slotting, etc.. I'd bet Matt's got a tuba or two around the shop with one on it, you should go see him and play with it.