Hello everyone ,I am new here, I was wondering if the Garrett 2500 will find gold? also how set it up to find gold? I have owned this machine for about 2 months. the ground where we go is very materialized so it is very sensitive.. buzz's a lot.. how do i discriminate the bad from good.. I use the all metal mode..sensitivity on 7 threshold on 7 and do not know if i am ground blanching or not.. any help would be appreciated..thanks