Super heavy in that size of trailer adds what maybe a couple hundred pounds?Any of the composite lumbers are all super heavy. So it must be something different. And they are super slippery in the winter, especially after they get polished up a bit.
As for the road slop, it looks like it has a mini fender above the tire, and the boards are perpendicular to the direction the spray would be coming. So my hunch is that it might work out just fine. Interested to find out. Let us know, please, Christopher.
And if they are slippery would they just act as ski slides then? Then maybe just add some traction for the sled tracks if that was an issue. Or maybe is coated like that Black lumber is.
I might be more cynical on road spray being here in MN with all the chemicals they put on our roads. I forget that those are not used everyplace in the winter.