Yeah those are likely the V2 units.

I purchased mine well over a year and a half ago.

Sounds like it is time for me to revisit the 6 channel units.

Some think this may take business away from Spektrum/JR, but at least in my case the availability of cheap RX's has led me to purchase a couple of newer and more expensive JR RX's, like the X11 DSM2/X, etc... which I would not have done otherwise.