I received my AT Pro on December 24th and have only gotton to use it 3 times because of weather and work. Recently on here was a test from garrett to see if your detector needs sent in,and Im not sure what to do. When using it it has ran perfectly no falsing problems and finding stuff like a champ.....But if I try to by shaking or twisting wrist I can get it to false so my question is did you guys send it in to be safe or did you really consider it to be a problem?? thanks