I have ran in snow alot, my mm and warrier 9920 are unefected by the water, and my spektrum recievers also work great with no balloons. I dip the ends of my lipo packs in plastidip, that works great for them. And to keep my magnets from rusting to hell I seal around the wires with more plastidip. O and my hs-5955-tg servo is factory sealed with 8 orings.