Where I am hunting right now, most of the nuggets are in the 1/4 oz range, big gold, there is a little over 31 grams to the oz. the last nugget I got up there was 13.1 penny weight, not grams. all the gold is shallow, surface to about 8-12 inches. Although I'm useing my 2200sd, the soverine would have picked them all up, I have taken over 4 1/2 oz's out in 11 days, and only been skunked on one trip. I keep telling myself, I want to take the soverine up there, but its over a mile walk in, all up hill, the 2200 is a sure thing, the soverine is just an experment, but I have yet to take it in there, but I do test athome with it, and it DOES pick up every nugget I have found up there. Settings on DIS. with the knobs truned all the way down to 1, threshold high. Grubstake