I also have a cheapo Esky 6 channel 2.4ghz radio. It is so good I have bought 10 extra receivers for it and fitted them in all my boats. I have completely ditched 27 and 40 meg
and have now just the one Tx for all.
The range is excellent and I can control even my fast brushless powerboats nearly out of sight (And sometimes out of sight too

)
Most of the lads in our club are changing over and are buying the Planet radio which works very well, totally recommended (But not for Subs

)
ATB
Nige