Thank you RLOH, for info on deeper coins, I don't seem to get past about 5 inches with the 600 although I am able to dig up square nails pretty deep, trouble is thats not what I run home and brag about. Any other tips would be appreciated. I do only hunt wet ground if you want to call that a tip. Tennessee nasty ground, lots of iron I could sure use some help. My good looks "aint" getting me anywhere! Stock 600.