Hello all, I have been metal detecting for perhaps 30 years. Bought many used machines and dug every signal. I saved for 2 years to get an AT PRO and it was broken right out of the box, same experience with their pin pointer. I have been using a Whites for years and bought the Treasure Pro today. Wanted the automatic ground balance. I cannot wait to get out to try it. I have been in electronics since 1970.