I must be a slow learner. I finally figured out a super quick way to ground balance my Tesoro detectors in the discrimination mode. When I get the detector perfectly balanced in the 'all metal' mode, I switch over to the 'discriminate mode' and start turning the ground balance knob to the negative while briskly pumping the coil over the ground in a clean metal free area from around 7 inches to 1 inch. When I start to hear clicks, I turn the ground balance knob back to the positive just enough until the clicking sound is gone. In my ground it's exactly 1/4 turn on the ground balance knob to the negative from where it's perfectly ground balanced in the 'all metal' mode. I've been running my ground balance in the discrimination mode a little too positive in the past. Now that I have it figured out, I'm getting 1 to 2 inches more in depth.
tabman
tabman