I'm looking into getting a TREX v2 and am wondering if the Spektrum DX6 or DX7 would be good radios for it? I'd love to get one of the big expensive Futaba radios but at this time would rather get something that I can swap between my Blade CP Pro & TREX v2. Then move up to a Futaba when I get a Nitro bird (Raptor). Are the Spektrum radios decent for the money ($200-350) or would I just be tossing my cash in the garbage with one of these?