I've got a LP and even like the pups but the bridge sqeals like a pig when I turn up the gain. Funny thing is my PRS doesn't do this. I even have an SG Epi that I put the GFS pups in and it sounds better than my real LP. What gives?? Is there a way to keep the squeeling pickup from doing this. Is it safe to pot it with wax? How is that done? Any help would be apprecaited.