I'm no expert on the CTX, far from it. I have used Gone Hunting's program for 6 months. I hunt mostly parks, sports fields, private residences, median strips and abandon military installations. I use the discrimination program for hunting and if I get a strange signal I switch to the open screen, check it out there and if it is pretty lose to discrimination program I dig it. This detector is notoriously accurate with GH's programs when hunting coins and jewelry. If it gives you most any target on the 11 or 12 line such as 11-46, or 12- 44 you can bet your next retirement check its probably a clad quarter or dime.
I rang up a 13-09, 12-08, 12-09 a month ago and sure enough it was a gold men's wedding band. 6.5 grams of 14K. If its gold or silver this machine with GH'S,s program will light up and more often than not be very stable. If its 10K it may wobble a little, I have checked that out very closely with some of my sample finds ranging from 10K small rings to 22K bracelets.
I love the CTX, but I have a horrible right rotator cuff tear. I can only swing it for an hour or so! Then I have to go to the AT Pro or my shoulder kills me. I ordered a harness to see if that may help relieve some of the pain. If not, it's surgery time again. Never do rotator cuff surgery unless you absolutely have to.
Gone Hunting is a genius with this machine.
Thanks for looking. GL---------HH