What # do you get when you ground balance in wet sand ? The Garrett videos say between 20-1 , but here in California that is not the case . I have ground balanced manual and auto till I got a faint high and low tone and it ran very stable . Was just curious what numbers people get , the beach I went to had black sand . Have hunted parks and the dry sand and the at pro is a killer but new to the wet stuff . If there are any of you in California with an at pro please let me know .