I have a F75 and a Minelab Equinox. The Etrac is too heavy to swing all day but it is great at old campsites and dumps. I want to metal detect Meteorites and rock hunt. Its been suggested a national forest here in New Mexico. Does any one actually hunt National Forrest? Also is there a reference within claim for meteorite hunting say in New Mexico and Arizona? Last, what is the Equinox with a small coil able to actually find gold nugget wise?