I am wanting to put in a new steering servo that is 7.4v capable and waterproof that will fit in the original mount. I have a hitec hs 5765 that fits in there pretty good but it is not waterproof. Another Hitec waterproof servo I looked at is too big for the stock mount, would need the futaba mount which there are no predrilled countersunk holes for it to bolt to the chassis. What do you guys use in there? Or should I jut drill new holes for the futaba mount? Thanks!!