Ahem...that's Throat to you. DX6, DX6i for sure, I think a DX7, and some cheap chinese radio but I forget which one. Which of yours did we try it on? I think it was a power issue and we could have gotten it sorted out with a couple of extra wires. It should work on any radio that the button mod works on, power issue aside anyway.
Snipe makes the best stuff, painless install in most cases, well "most" is very subjective, right Lou?