Bought a mint "like new" QXT Pro off of fee-bay last week. Really like the fast recovery of this machine. Kind of reminds me of my Classic i.d. but with much more user control and depth. Has very nice audio sound too. Took it out to a local school I hunt today to give her a try. Found some clad then within the first 15 minutes I hit this target. It was hard to keep my composure and from doing the happy dance. It's 14k with 14 stones. Need to take it in to a jeweler friend of mine for an official look. Anyway, a very good start for a new detector.