Another vote here for Airtronics /Sanwa MT-4(s), M11x or M12. Personally I wouldn't touch anything else these days. The best thing about it is that I can fully rely on my radio 100% of the time something I couldn't do with Spectrum - I always had that niggling feeling that it was going to glitch or do something I didn't want and usually it did!! I have tried the KO and the Futaba and both are amazing as well but for me I prefer the ergonomics of the Sanwa kit.