My 2nd time out with the ATpro. My plan was to dig everything even when switching the iron audio on the bottle caps the first two hrs...works like a charm! I was very selective the last hr. an a half as i was starting to trust my bit!! This beach only takes me about two hrs to hunt but today I slow down and only did 3/4 of it. My take was 1918 merc, 1946 Rosie, Buff,wheaties,junk jewelry and $4.68 in clads. Here is a video to better understand what iron audio is....I run on Pro mode.
http://www.youtube.com/watch?v=quGU34swYh0&feature=player_embedded
http://www.youtube.com/watch?v=quGU34swYh0&feature=player_embedded