Steve, the XLT, operating in the Prospecting Mode, and optimally tuned, will find nuggets from about 7 grains and larger, and then only about an inch deep. (Yes, soil conditions WILL influence the above stats.) The MXT, operating in the Prospecting Mode, and optimally tuned, will find flakes (on the surface) as small as 1/4 grain. The MXT will find 7 grainers (about) 6 inches deep, again, soil conditions will vary such performance. Obviously, the MXT notably outperfroms the XLT in the goldfields. As far as coin hunting is concerned, in most areas the MXT will get greater depth than the XLT, but, teh XLT has more bells and whistles. Yes, the MXT will be the perfect choice for your needs. Right now, with the purchase of an MXT, you can get an accessory searchcoil, valued up to $249.95, for $49.95. I have considerable experience prospecting with the MXT, and have prepared a pamphlet on otimally tuning the MXT for nuggets. Feel free to email me for advice. Hope this helps; HH jim (OphirAU@msn.com)