Though I have not sold or traded my Etrac, it has been sitting in the corner since purchasing the CTX. There are definitely times I have been tempted to switch back (especially when not finding silver). I was never very good at two-tone ferrous and didn't have patience to learn it well. Since buying the CTX, I've been using the combine feature exclusively. Though I still dig a fair amount of nails, I'm getting better and finding more coins. I will say the thing I miss the most on my Etrac is an intelligent pinpointer. Though the Pro Pointer is nice, I hate turning it on, checking to make sure its on, lifting one headphone, scanning the hole, checking to make sure its on, moving the pinpointer when it goes crazy "seeing" my lesche or detector, and hope I don't leave it behind.
Yesterday I went to a local park to do some water detecting...which is something I've never done. After a couple of hours I had found some clad and a junk bracelet. I got out of the water, changed headphones, and started detecting the adjoining field. This field has lots of fill so I've never found anything old in the middle of it. I cranked the sensitivity to 30, swung slow and listened for deep signals. Five minutes in, got a choppy 11-43 9" signal and dug it. Though I had a little trouble pinpointing it since it was so choppy, I pulled out a '34 Merc. If nothing else did, this morning convinced me there as no turning back to the Etrac.