I've soldered at least 6 sets of pups into my tele and during an experiment with different cap values a few weeks ago I noticed a drop in output and fullness in my tele. I don't have a powerful solder iron and I'm wondering if applying so much heat to melt the solder over time as killed the pot and affected the tone ? My iron is 25 watts, if that means anything. J UPDATE: Well, I changed out both pots and the capacitor tonight (parts from acme guitars)...and the conclusion...YES, heat can kill, at least harm the output. Both pups sound better, more fullness, much better clarity...so there you have it.