No, I was saying it really scrapes hard on the 35 footer. In general though if I land on the down hills it rarely bottoms completely. Doesn't really matter they are pretty cheap & I recommend them. I had a used chassis and the very tail end was ground up to 1/2 it's thickness lol. I replaced it and started using these and never had another problem. Not a big deal. In general I'd day if your grinding that bad your setup a bit to soft IMO. I know softer handles better but I like the big air and my esc living thru it. Also use double layer of Parma under the esc and 2 zip ties to be safe, the rx8's aren't cheap! I also use Velcro on my batts and tray then strap them in.