Just wondering if anyone close by or along the NC coast that has this detector could share some experience with me. Particularly on GB'ing the detector on the wet beach. When I did it at Onslow Beach and Emerald Isle, it was a bit frustrating, in that when I raised the coil about a foot off the ground and lowered it, there did not seem to be much change in the threshold. It would quiet as I bought the coil to the sand, I would adjust and it would do the same. It was difficult if not impossible to get the tone to stay steady as I would lower the coil to the sand. I did it both fast and slow. When I did it real slow, it seemed to work better. What is your technique/experience with GB'ing the BHID 300? Thanks, Bryan