| Gilligan:
If you are talking about lapping the main tuning slide, I wouldn't. A slide that doesn't move freely has a problem that needs to be addressed. It probably has a dent or two in it (even small ones make a big difference) and it is probably out of round or out of alignment. I find that if I have all the dents out, use my expander tool to reround the outer ferrule, and align the inner and outer slides, the slide will work freely. In almost 30 years of repair work I have never lapped a tuning slide.
__________________
"Music is a fire in your belly that has to come out of your mouth, so you'd better put a horn in the way before someone gets hurt" (paraphrase of Bleeding Gums Murphy) |