Hello all. I have an OLP MM2 and although I love it to death, it has its problems. The problem that I've found is that when I'm playing with a pick the E string has a definite thump, but the A, D, and G strings are all rattly and have barely any sustain. What gives? My friend's knockoff P-Bass doesn't have this problem, and it probably costs less than mine. I'm wondering if it has to do with the fretboard and if they need to be filed down or anything. Help!