I was watching carter do some testing with the AT gold against the Vista gold and yes the vista was deeper , but i also found myself impressed with the AT GOLD so i looked up some videos on utube and found 4 videos that showed all its capabilitys and I have to say I am impressed with the AT GOLD as well its ground balance in all metal is 1st rate not to mention its Iron adeo Carter has not only sold me on the Vista but also to AT GOLD