I picked up a Mexi p bass at GC a few days ago, black w -tortoise pick guard( I changed it out), I also changed the p'ups to Duncan Vintage basslines. I wanted to get rid of that annoying hum, buzz that happens when you dont' have your hand on the strings or knobs. I checked out the procedure at the "guitarnuts " website concerning star grounding and cavity shielding. I used the aluminum tape method (home depot) to shield the control cavity and the pickup cavity, star grounding method, and I shielded the entire back of the pickguard with aluminum foil. I'll be darned, it worked! The bass is totally silent now whether I am touching the bass or not. Also, I can't say enough good things about these Fender Mexi P basses. They are relativley cheap (I paid $325 out the door), they stay in tune, and they adjust well. Its the 2nd one I've owned, and they have both been fun to play and mess with.