Tried to search a topic on this before, but didn't find it. So here I'll ask again. Has anyone of you ever "bonked"* your pickups out of the screws on your bass, just by playing? Now, I have. On certain large shell pickups, mostly active like EMG, there are: 1. You have to set the action so that is as close to the strings as possible, for best sound and output. 2. They usually just have ONE screw on each side, one at the bass side, one at the treble. Not four screws, on in each corner. 3. You have to screw them "high up" in order to have your thumb for something to rest on when doing regular finger pick strokes. 4. This happens at rest strokes mostly. Now, what happens is, that one tend to naturally seek a sweet spot right on the strings, RIGHT over the pickup, and since it has been set too close to the strings, there's little space underneath for getting that grip on the string. However, when doing this you seem to alter your pick attack, and lean in a bit heavier. The resulting rest strokes, are so heavy that it'll push the pickup shell down a bit, and it lifts the shell up again, for the next attack with you fingers. However, doing this repeatedly will unravel the screws thread in the wood underneath, eventually leaving the holes without threads, so the bass end of the pickup will be loose and rattle as there were no screw at all. Also, but to a much lesser degree, having the pickup as a thumb rest will also whack the screws somewhat or at least impose an unneccessary force to pickup, albeit sideways. The only remedy I have to this, is getting either pickups with four screws (requiring more force to move the PU in any direction) or using steel/brass threaded inserts for the screws together with silicone tubing that has more resistance than the spring surrounding the screw. Turning the pickups down so much that this ain't a problem increases all other problems. Like, less output, and character of the sound, as well as too little space for your thumb to rest on. - - - - - - - For what is worth, I think that bass pickups, at least on the treble side, should come with replacable covers that has a choice of different "flanges" or "thumb rest ramps" that protrudes high over the body anyway, but to leave you with the option of having the strong pickups turned down low, with longer distance to the strings. Of course, the best thing is that such a ramp would be built in the bass from the start like on the old P and J basses. On the bass side then, not as the really old ones with "ramp" to rest your other fingers while just playing with your thumb. *Not the british slang word for sexual intercourse!