Which radio!???
As far as I am aware, it is positive shift (JR compatible) only, though I think I have read that MultiplexUSA can adapt Txs to be selectable. Shift is not a problem in Europe so we tend to ignore America's self-inflicted wounds!
There are 2 things to beware of with the Cockpit though. 1-You can not name models, the memories are identified by numbers 1-9 only. The JR652 uses 3 character names, I think the Futaba 6X still uses numbers. 2-The cockpit has no user defined mixers, only the ten pre-defined ones that come with it. That means you can not make things like knife edge mixers.
If you can afford it, wait for the new Royal Evo to hit the shops any day now. I had my hands on it at the UK's main show in May, and it is quite fantastic. Here in the UK the 9 channel version will be about 1/2 the price of the Futaba 8+1ZAP. It is likely to drive down the price of the 3030 or more probably bring 3030 production to a close, if you can then get your hands on the 3030 at a good price, it wipes the floor with the Futaba 8+1ZAP
Harry