Im trying ti find out what would be the best steering servos and most water/weather proof for an LST - any help would be great

ACE 1015, waterproof, fast as hell, and very torquey. I use them in both my Savage X and in my Losi Muggy. They are digital as well, so very precise. They are also less money then a Futaba or Sanwa with the same specs. Very good Servo in my opinion.

I would have to agree with DHC6. For the price you cant get anything better.