Replying to HERES ONE FOR YA SCIENCE WIZZES

ok, so i have a summer rail setup with astroturf, the green kind. i am rebuilding my ramp and putting new turf on and was wondering: is there a certain color of turf that slides better and has less friction? also, what is more slidy: turf or this snowfence stuff i keep seeing in summer edits? also, which is better and less harmful to the base of the skis: snowfence or turf? will the snowfence trash my bases? help me out sherlock and i might just rate you 10/10.