Ive only done it twice and it was some real fun. I did it in boston harbor and almost had a heart attack on my first try. It was incredible and ive never even come close to finding as many artifacts as I did in those 2 sessions. When I put the coil to the ground there it made noises like godzilla attacking tokyo, no good. Only sifting in that spot. The earth was rich in artifacts there. Congrats. I like the aqua jar too.