Hi I'm wanting to buy 2 detectors one for me and my wife we live in Northern Calif. would like to find an all around detector would be doing more parks swim areas on the river but also check out some creeks in the hills around here for gold as Calif gold country is all around us I was looking at the Ace 350 but was told its not good for Calif but the AT Pro is any thoughts on what would be good for us in the $500.00 - $600.00 range.