Does anyone have any thoughts on the relative advantages/disadvantages of aluminum 1/2 inch 3/8 inch or 3/8 in UHMW for skid plates and rock sliders. I can see where the UHMW is more resiliant and its low coefficient of friction may help get you over some spots but it's still plastic. I like it on my woodworking jigs for the above reasons. As for aluminum, I would think that thicker is better, but how thick is thick enough? UHMW seems to be more economical as well. Will it meet the requirements of events such as Rally on the Rocks that require skid plates for the most technical trails?