I just used acetone to strip the lacquer from three pipes. The lacquer on two old Yello Boles quickly yielded, but the lacquer on a later production Kaywoodie Carburetor was unfazed. I am going to leave the Kaywoodie alone, as my effort to strip the lacquer from it was just an exploratory attempt. I am wondering, though, what I might need to do before smoking the stripped pipes. Do they just need time to dry?