ok gents. i have an ST10 that i have pretty much stripped of krylon. the only part im having trouble with is the knurling on the ERGO adjustment on the end of the scope. ive been using acetone to get the majority of the paint off. i tried using klean strip in the aerosol can to get the paint off the knurling, but it only helped a little. ive tried using an AP brush from a gun cleaning kit to scrub on it, but it hasnt helped that much either. so...any suggestions?