I don't know why HedyelAA says that 2-box machines are difficult to learn. They're no more difficult to learn than standard detectors, IMHO.
I agree with him that the TM808 is good. All 2-box machines are about the same, as far as I know. And even if any of the other competing types could be said to be "
more sensitive", just be aware that .... ironically, "more sensitive" can start to be detrimental to the goals of a 2-box user. If they become sensitive enough to pick apricot sized targets (silver dollars, etc....) too easily, then you start to become bedeviled with too much small stuff. So you actually WANT the machine to NOT be "sensitive enough" to find objects smaller than about a Soda Can. They are all just fine for jar and toaster sized objects to good deep depths. And that's all you want.
And while it's true that a machine like an Ace 150 might get a toaster sized object equally as deep, you STILL want a 2-box, if your ultimate goal is jar and toaster and statue sized objects. Because in my experience, if you rely on a standard machine, and tell yourself : "I'll just ignore all the small beeps", it never works out that way. You'll find yourself digging a bunch "just to make sure". Contrast to a 2-box machine, which sees-right-through that stuff (can't see anything smaller than a playing card approximately) to ONLY get the big stuff. The perfect discriminator for pesky individual coins, nails, tabs, etc.....
