I have been out with the Equinox for the last two days. I found several 7" dimes with good Target ID. In my soil 7" is about the limit for depth with solid ID, judging by past performance of other detectors I own or have owned, including the CTX 3030, V3i, and MXT. They'll get them deeper of course, but Target ID accuracy starts to drop off rapidly. I also have a 7" dime buried in my backyard test garden, and the Equinox hits it solid, AT LEAST as well as the other detectors could. Unfortnately, I haven't been able to find any deeper dimes (my "reference" target for just about everything) yet in real in-the-field conditions, but that's only because I haven't had my coil over one yet. Bottom line: from what I've seen so far, the Equinox is at least as deep as the CTX 3030, the V3i, and the MXT. I tend to agree that VLF depth potential was reached decades ago, and nowadays the refinements are in Target ID accuracy and unmasking, things the Equinox seems to do VERY well. .