This is the oddest problem. I just acquired a G&L ASAT. Came with roundwounds. Just received some TI Jazz Flats. As soon as I get to tension, the string starts slipping out of the tuner, starting from the very end of the string inserted into the tuner. Did this on the G, A and D strings with the flatwounds. Haven't tried the E yet. I try and re-string with the original roundwound string. Same thing. The tuner isn't slipping. It doesn't seem to be the silk wrapping on the end of the string as the roundwounds it came with were unwrapped and bare-stringed and when I tried to put them on, same thing - slipped until unwrapped when I got to the point of tension. Oh, the E and A roundwounds went back on and didn't slip. Any suggestions? Probably something simple I'm just overlooking.