[quote=”guitarguy”]on my guitar i have some open coil humbuckers and i have an extra set of humbuckers with the covers on them. i am thinking about swaping them so what i did, i put the closed ones over top of them ones already on just holding them to see how it would look and they atractred. i dont think they touched. could it of damaged the magnets or anything else. also if they did touch could they have got damaged??[/quote]A cover cant damage the p/u…even if it is metallic of some kind unless it stayed in contact with the mags a long period of time but even then it might just demag it a bit