feedback on EZ LOAD SKI RAMPS for trailers

[mbarryracing]

Anyone tried these Ski Ramps for across the back of tilt trailers, so the carbides don't catch? I have the aluminum rail across the back of my Triton and would like to get some feed back if anyone has these.

How do they work with the enclosures?
Do they obstruct the view of the tail lights much?

www.injectionplasticsmfg.com