Dave,
I like the V a lot, it has its place. For the hunting that I do day in and day out, coin shooting in the park, the M6 wins out for a few reasons.
If I were hunting fields and beaches most of the time it would probably be the V that would win out primarily due to its light weight and lightning quick response and depth. It is super on Canadian coins too.
Why I like the M6:
Awesome audio, for rough, depth determination and VCO pinpoint, this was one of the things that I missed the most on the V. The tone ID is all that I hunt in, the screen is an afterthought. If all I had was tone id and a depth indicator I would be just as happy with this unit. The battery life is amazing, I have over 20 hours on the present set of alkalines and they still read 11 volts on start up.
I had this machine at the beach and was wowed at the depth and TID at depth. The 10x6 DD coil does a fine job, I am wondering whether a smaller coil is even needed? It is really just as turn on and go as the V and maybe a bit easier since it autotracks the ground, you don't have to balance manually. It is louder than the V. A trick from the CZ5 days, by tracking in beach mode the Canuckistan coins read a bit better. In the park I can hunt very quickly with very high coin to garbage count. The weight is becoming a non issue, the arm strap needs to be used.
I know that there are differences between this and the MXT and I have been wondering whether to go to it instead......? Whites says that the M6 is a coin and jewellry hunter for everyday type hunting and it is truly that. I don't relic hunt but will be handing it over to a buddy of mine who does to see how it performs. The MXT does not have the multi tone TID like the M6, I believe it is two tone only, correct me if I am wrong. Did I mention that I REALLY like the multi tone mode of the M6? I can't stand reading a meter while I am swinging on the move.
The draw backs to the M6 are:
I wish that it was the same physical setup as the Prizm series, electronics high up off of the ground.
The V was my favourite machine until I tried the M6. "IF" the V had 5 or 7 tone ID and just a depth reading I would buy a pair of them and go away for the rest of my days. I would also like to see it with a larger battery setup, like the DeLeon. I have often thought that the V will become my backup unit if I carry another machine. Someone mentioned that I should look into the discontinued Diablo uMax for some serious tiny gold hunting for park prospecting. I was hoping that the V would have filled that void as that is the only reason I need (want) a specialty detector. The V came close to that.
If the MXT had the multi tone ID, like the M6, I would trade if it was really the hot prospecting unit that I read that it is.