I have been a Tesoro user untill I traded my Conquistador in on a garrette ace 250.I am having trouble using it .The first time I took it out I was very happy with it but do have trouble pinpointing with it.Sometimes I hear something sounds like a coin so i dig and turn my clump over then the sound quits.Its as if nothing is there and Im sure i heard a good sound. What is that all about.Ive been detecting for quite awhile.just cant get use to it I guess. Thanks for any help. Quizpro