Posted by David on September 19, 2001 at 11:30:00:
In Reply to: Jupiter Sousaphone Valves/Sticking posted by Jason on September 18, 2001 at 18:37:09:
Sometimes the break-in process can be sped up by having the local repair person buff the pistons. A light polish usually does wonders and does not hurt the longevity of the instrument at all.
I did this to my Meinl Weston 2000 and the change was dramatic.
E-mail me if you would like more info.