Posted by Heloise on January 08, 2000 at 01:12:12:
In Reply to: Valves on a Miraphone Euphonium posted by Andy Smith on January 07, 2000 at 16:29:45:
The oil might be freeing up some loose weird stuff that is lurking in the knuckles between the valve casings.
' hope this suggestion wasn't too much of a "turn off".