What ground balancing mode does everyone use? Only reason I ask, is I recently saw a video with Johnathan Porter on Facebook, , where he got a faint signal, that ended up being a nugget. He mentions if he was in auto, passing over the target 3-4 times, more than likely the signal would have went away.    Now I hunt in auto, and I can't count how many times I've come across a faint target, and it went away after a few swipes of the coil. Now I wonder how much gold I've missed....? Dave