Posted by Matt Walters on January 31, 2000 at 23:16:53:
In Reply to: Re: Re: Re: Re: Re: Ft. Myer posted by George Lens on January 31, 2000 at 11:22:45:
Metal valve guides. So? One of the easiest modifications to perform to a piston valve tuba, is the conversion to nylon guides. They need to leave SOME easy money to the repairpersons. :-)