I just received my Surfmaster PI Plus that I won on eBay; I also went on the White's site and ordered the coil bracket as advised. I loaded the batteries in this thing, turned it on, and, WOW. This thing is not only loud, but is picking up every nail in the floorboards of my house. I took it outside and it is picking up metal beneath my asphalt driveway that my Classic III doesn't even hint it's there! I guess this thing will do OK in the surf; I had to turn down the volume resistor on the circuit board as I could barely keep the headphones on with the noise. My question to other Surfmaster owners is this: do you recommend releasing the clamps that holds that clear cover when not in use? It seems to be molded with a natural curve to make the clamping action that much more effective once the clamps are snapped down. I'd hate to have this added natural curve flatten out after being under compression from the clamps for so long.