Flashpoint Zoom r2 I believe it's the TT685c. However I just bought the Zoom Li-on(v860iic) when Adorama had it for $110 which I have not taken out of the box yet. So I do own both now.
So TT685 atop a 6d firing AND transmitting to AD180(r2 -> non-r2 receiver set to B) & SL360(r2->non-r2 receiver set to C)
I am trying to remember if I had ever attached the flash to my 1Ds3 that day.