I don't buy into those large add-ons for the Garrett or any other detector unless you're looking for a specific cache, which I would think wouldn't be too often. All high end detectors when using high sens. and low disc. are pretty good at hitting large targets deep. To use one of those big 2 box units or multipliers or whatever the heck they call them you're just wasting away your day hoping for the big one. I'd much rather use a normal detector, find all the usual targets, probably have the shot of at least half the caches, than go home with nothing from a bad equipment choice.
I had a GTI and it's a good unit but one thing I didn't like is a lack of modulated audio because the target boost and just the way the unit operates gives you much less sound info. on the deep stuff. It's hard to describe but basically it doesn't give you as many little hints. In comparison, and an example, one thing my explorer does better is lets me cherry pick quality iron hits at my Colonial sites that can be cannon balls or trade axes. I can wait and pick my spots, but with the Garrett the sound between a deep nail and deep big iron wasn't a heck of a lot different, so if you want iron relics you have no choice but to dig lots of iron. I am no doubt getting way ahead of things if you are just starting out so I'll stop now. I did make many good finds with my GTI 1500, and my digging bud has 5 or 6 years of very good ones with his too.
In my opinion you should drop the dream of caches and figure out what unit you want for coins and relics. You'll find way more in the long run doing it that way.
PS... In my 10 years online I can count all the caches I've seen posted on my two hands. The one which was by far the best had MANY question attached with the story changing 2 or 3 times. The rest had no serious value, and even a few of those were most likely BS. Yes, a good one is probably one in a million, and you should know that going in, but do keep the dream alive!
