I've had guitars that were set up by "pros" that sounded muddy because the pups were so close to the strings. Sounded much better when I backed them off. I almost always play with at least some dirt and, for me, I don't like the pups too high, especially humbuckers. That said, I haven't really figured out where I like the pups in my Telecaster. I should mess with them some more tonight. I'm going to jam again this weekend and I didn't like my sound last time.