Hit some fields with Relic Hunter Bob on Sunday. Other then the usual colonial buttons etc... I hit two coppers pretty deep. The first was app.10" or so but the other one 12-14 inches deep. On both of them I lost the signal after breaking the halo but was able to pick them up with the pinpointer, then once out of the hole, no problem. So, if you have a good signal, then loose it, keep digging...
hp
hp