If you arent having interference issues you have to legitimate reason to change. The software is as good or better on the 7C and unless you are looking to shed the frequency pin there is no good reason to change.
coz Futaba are bring out their 2.4ghz. But its all Speck idea.
Thats pretty funny. Futaba has been in the spread spectrum business for years, they just didn't rush it to the hobby market.