Ok, cool..I was wondering if you were really new at this or not...so thats good info about your level, and what you are hunting depth wise.. you've been doing this detecting thing for a while, so we dont have to start with the basics...
Yeah, I will say, on deep stuff, in some changing ground, I get all sorts of squirrelly signals on coins, TID wont lock and hold exactly like what you are experiencing...so I run Iron audio ON in those areas...and also I try to run a hotter sens...about one click down from full...then, I manipulate the coil over a target either wiggling it, or bouncing it, or a mixture of the two to try to get an idea of the size and depth....I think we need some other eyes and experience on this for you Joe...I hunt beaches and water with my Pro..that said, I have targets coming in all over the TID spectrum at depth, of course, its easy to dig in the sand, so I go by 'size' of the target more than anything.... .FORUM HELP!
Any dirt boys out there that can help Joe here??
Mud