I just bought a used xterra 70 from a member on this form and it is a awesome machine is all i can say. I don't want to name the seller for privacy reasons, but the seller was A+. Fast, clean product, and easy to work with. However, I have a gold se and only plan to prospect for natural gold. I wan'ted to know if anyone has any pointers on prospecting. Such as, AM mode vs prospecting mode, or switching. Also do you leave it in factory settings? Is this correct if i set the iron mask to lv 0 then that is AM mode? I can't wait for school to get out so i can focus more time on prospecting. I live in Northern California and plan on hunting the Feather River and Butte Creek. I have been running along the river and on bed rock with my gold bug se (version 3) but have not found much just normal junk. Do you have any recomendations? I was thinking of working up the bank some to try my luck. Well any helpfull pointers would be great thanks Jess.