Posted by Bill on June 23, 1999 at 19:41:51:
I have a PT-10 and I like the horn, but the valves are really slow. I tried cleaning them and now they are clean and slow. I oiled them and well that didn't do much for them either, I even changed the linkages. I asked my Teacher what to do and he told me to buy a piston valve horn (Funny, but not too informative), so if any of you rotary valve players have any suggestions they would be very welcomed.