last year started as good as can be expected using a new machine. Was picking up on the EQ's sounds and was making progress, then it started getting slightly erratic, signal/targets didn't jive and i thought E.M. was the problem. finally sent it back and the coil was bad. I did a lot of shallow beach detecting but don't know it that was it or not. Anyway by the time i got it back it was getting cold. Feel like i'm starting from scratch this spring, gotta relearn the good and and unlearn the bad (chasing ghosts and other false settings i tried). Not sure i want to dunk another coil or not. If i had 2 coils i would dedicate one for water only. Going to reread the manual tonight and get familiar with controls and give it a go tomorrow at a quiet location ans see how it go's.