Lee that's interesting right there. It shows how two people can see the same machines totally different. I think the V3 is light years ahead of the MXT. I've owned two MXTs over the years (I bought one when they first came out and didn't like it and quickly sold it then purchased another one later on to give it a 2nd chance and sold it just the same). The MXT/M6/DFX are based on the same platform. All three are bad to lie on target ID and tones.
I've actually never seen one series of machines more prone to lying to be honest. They were REALLY bad about lumping things into the iron range that weren't iron; the MXT was bad for doing that and or reading things as HOT ROCK that wasn't a hot rock. A good hunting buddy of mine got permission to a site back in November of last year. He had the MXT 300 with the bigger coil. Same machine, just a bigger coil. He had been hunting this little camp and had found a few bullets and a button or two and called me up to come hunt with him. At this time I had the Minelab GPX 4500, the predecessor to the 4800 and 5000. Well it was nearly February before I could get together with him and he'd been to the little camp several times between Nov and late Jan. He said the last two times he'd been to it he hadn't found anything.
My first hunt there this is what I came up with:
He was interested in the 4500 and stuck close by after I'd dug a couple bullets. He wanted to listen to one on his unit that I thought was a deeper one. This dirt is NOT highly mineralized. It's actually in the woods and good blackish dirt. Anyway I had a bullet signal and hollered at him. His machine barely grunted on it and didn't even give a VDI number for it. He said "ain't no way that's a signal" and I let him listen to it on my machine. Dug a 3 ringer at just around 8 inches.
The next trip there was that following weekend. This is what came out of there for me on that trip:
And this was the other stuff that same day:
He sold his MXT that week and purchased a Teknetics T2; much better machine for depth but still has a tendency to lie a little on deeper targets.
With the GPX machines you don't get any visual ID, just tone ID...it's either a broken tone if it's iron, or a high tone if it's small and a low tone if its big. I sort of like that better myself.