I have my MXT PRO for 3 weeks now, Ihave found a civil war incampment. why do I think so, bayonet, jaw harp, horse shoes, wagon wheel nuts,square nails, all kinds of metal objects ? havent id them yet. Think I am in the area where they shoed their horses, a typ of blacksmith area, The old timers in the area know of no blacksmith in this area the heavy saturated so far has been about 50 square ft or so. Dont want give to much info but my question is, I have been using iron ID hits everything one square nail 8" deep, cant go 3 ft. without hitting something, should I use tone 1 or 2 with some disc. or go own as I am doing? I guess I am to anxious for buckle or button, trying to be patient