► The key here is to make sure a Classic series model has a slightly positive GB in the All Metal or Pinpoint function when the search coil is lowered from about 6" to about 1" from the ground. That way I can travel about with a modified Classic SL series model and have a 'workable' GB for most any site, if I simply leave the control alone once it has been adjusted very slightly positive over the worst ground in my area where I usually go detecting. The Frequency Shift control (on a Classic III SL or IDX Pro) has been moved from the default ▼ preset marker to eliminate EMI from a nearby offending detector because that shifts the GB.The GB control has been errantly bumped/moved out of position.I have moved to a significantly different ground mineral environment.I only readjust the Ground Balance setting when necessary, such as if: ► Also note that if most of the ground in your area has a fairly consistent mineralization level, I have found that I can adjust the GB for a very slightly positive setting for the worst ground mineral present, then I don't fuss with the GB control most of the time. ► Remember that if you change search coils you should always double-check and re-adjust the GB as needed for the search coil in use. I suggest you set it about about a 2 o'clock position. Bill' type modified Classic with a 1-turn GB control. Jamie, it really doesn't matter where the GB control is set when you start, but it can speed things up a little by being 'close' so, if you have a 'Mr. Could someone walk me through it, copy and past, or post a link please? Starting point of GB knob and others would be helpful. I have forgotten the exact way to ground balance my modified classic.
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