Originally Posted by
BlueGlowBoy
I think it's more for keeping the dirt out, rather than waterproofing it. The ESC/Servo/Transponder are all more-or-less sealed units. Your RX has great big gaping holes that let all the little crud get inside...I've been told that depending on what the crud is made out of, it can lead to radio glitching... not sure how much that still applies with 2.4GHz....
And FASST RXs are the same price as transponders...
I can attest to the glitching you mentioned. That used to happen to me regularly, until I put my spektrum receiver in it's own "environmental control box". I received that suggestion from an engineer who works for spektrum actually. He mentioned that you'd be surprised how conductive the debris that collects in your receiver can be, especially if they're silicates (ie sand). So I just borrowed a receiver box from an old GT and mounted it on my SC10.