Daniel I think you may have answered a question I haven't gotten around to asking. It seems that the AT Pro really will GB in difficult soil. I have fairly mild soil and my AT Pro won't GB spot on unless I do it manual. My AT Pro findings are similar to yours. In soil around here the F-70 is a great relic machine and will ID coins 6" to 7" inches but the AT Pro will ID coins to almost 10" (perfectly GBed).
You come down kind of hard on some of the testers; I'm not sure that's needed. Still one must think about the motives when glowing reports are made. I know the Dealers are very good people; I do wonder about experience of some.
You come down kind of hard on some of the testers; I'm not sure that's needed. Still one must think about the motives when glowing reports are made. I know the Dealers are very good people; I do wonder about experience of some.