2nd kit ordered , waterproof.

[northkona]

I have just ordered my second wraith kit , I have MMP 17.5 tekin in my first one and it rips , my favourite rig by far. This one I am building up as an all weather rig , BRXL and 25t holmes , what I am after is a decent waterproof servo that doesnt cost $120. I have seen how-to's on waterproofing servos but am not sure which way to go , factory waterproofing or DIY . Anyone have success / failures with DIY? currently using savox sc-0251 larger standard servo and for $40 I cannot fault it. Thanks for any advice.