unless thats stuck in the ground somehow, thats gonna tip over. and why not use normal material for the surface..i'm talkin U.M.H.W or something like that, i dont remember exactly what its called.
a. yes it does slide well. b. i dont wanna spend $50 on materials for lexan/HDPE when i just re did my kitchenvand have a whole bunch of countertop materials that were throwing away