I am considering adding an AT PRO to my detecting arsenal, to date I have been a loyal owner of only (not black) detectors. Don't want to mention another brands name on a Garrett forum, but you get my drift. Have any of you AT PRO owners been previous owners of other brands higher end detectors? and if so sow does the AT stack up against them? I am not dissatisfied with my current detector line up just looking to expand my detecting weapons, since I don't own just one brand of gun, vehicle or motorcycle why own just one brand of detector Thanks in advance. Chris