i had posted before: the question is about my pus's hum. i replaced my fedner jazz set to lindy fralin set. but the problem is coming out, when the pan pot in the middle is noiseless, very clear. btw when i pan to neck either bridge, the hum is appear, just like a boiling water sound!! i try to ground the pus, but no change. and some pals said my pus aren't on full, how can i make the pickups on full? thanks.