I have the Futaba 6EX FASST SS radio. It's indeed a entry level computer radio. Switches aren't assignable and there's only one switch for all the DRs and EXPOs. The 6 channel receiver may not be compatible with the high-end modules Futaba has been promising. However, the link has been solid out to limits of visibility on a 25-size model.
I also have an Eclipse 7 with Spectra module. It's a helluvva lot more radio. XPS already sells a 2.4 GHz module for it and the Optic. One of these days Hitec will have a module out too. I'm waiting.....
CR