What's the best Tilt Trailer lift assist available?

[Skeeterzx225]

I have a single place 10' Floe tilt trailer, what's the best tilt assist solution available for it? I've heard the lift assist pumps are worthless when it's cold out (pretty much everytime you're snowmobiling) I noticed Triton uses a heavy spring instead of a shock, is that the better solution? Does anybody know if the spring will work on a Floe trailer?

 

[low slung]

Caliber brand piston for sled trailers(works even on my two-place sno-pro enclosed unit).