Here is a 14k heavy band I found last month with my tesoro .it weighs 10 grams.With the M6, which is like the default "coin and jewelry mode" on the MXT,I believe,it VDI's at 22, just like many ring tabs.And a buffalo nickle that read 14-16 in the ground just like the flap on a coke can.[attachment 58299 ring1.jpg]
Here is a closer pic of the ring with a dime for size comparison.
[attachment 58300 ring2.jpg]
You can see where I scratched the ring just left of center with my tool, I had been digging a lot of nickles and thought it was a nickle, my tesoro is a beep, dig.I dig alot of aluminum trash on purpose if I am in a place with older coins or schoolyards were there may be good rings.And it also helps to unmask stuff and make it easier to hunt next time I go back.I am still digging trash with the M6 till I become more confident with it .I just got it last week and already found some buffalos and a good bit of silver with it,but to get the gold I dig just about everything vdi 12-24, and also sizing up the target in pinpoint helps alot and depth helps also to decide if to dig or not if I get tired digging too much trash.Got another buffalo and a silver ring today.
HH.. Good Luck Richard A. S.La.