Congrats on the Cortes, I love mine, shows me what the target is 90 percent of the time, usually says it's junk but I still dig, could be gold jewelry. Ground balance it with just a very slight touch positive for smoothest operation when using ALL METAL mode. All metal covers a wider swipe than Disc. and goes much deeper, great when targets are spread out a little, picks up gold chains and other hard-to-detect small gold jewelry that Disc. will not detect. Yesterday I got a screwcap reading, dug it and it was a sleigh bell (Crotal) more than 6" deep, haven't dug one of those in over 25 years, then right after that dug up a 1954 silver quarter at about 6", the rest was clad and tabs, etc. Older tabs are a good 6" deep too, soft soil here in central Jersey. Was a good 2 hour hunt. 30 years ago I would have called it a bad 2 hours, isn't like it was back then.