i have a Selmer K modified horn which I really dig. It has the old style third valve slide ring which is attached via a lyre holder. It also has, I recentrly found out, one of the smaller slides at the very end of the third valve slide assembly. This smaller slide has become very loose and slick and just falls out of the horn.
Any strategies for getting this thing to say in place? I've tried greasing it up with vaseline, but that didn't help much.