Ground balance is of utmost importance on the Gold Bug,s and G2 when hunting the wet sand. You just can't do the auto ground balance and be done with it. You then have to check the numbers and manaually ground balance after that to get it spot on, or a little pos/neg to make it run smooth.
Here in NJ, I can run my Gold Bug SE at almost 95% sensitivity, in discrminate mode, and it will hit a thin gold band at 7 inches in the wet sand. Not super depth, but since it has lightning fast recovery speed, super target separation abilities with the DD coils, and great in iron laden sites, it's a trade off when the conditions are right.
Not even close depth wise compared to my CZ or PI units, but I can't run those units with the same performance when the wet sand areas are full of small rusty objects.
Horses for courses, and there are conditions when the Gold Bug or G2 can be a top unit.