We are just installing our new tunnels and I am wondering about the footholds. Seems like it could be a problem getting your boot out from under the factory toeholds. I have seen pictures of a few other sleds and they have been left off, is this why? I actually like to hook my feet under when boondocking but don't need another knee surgery or worse if I can't get my foot out. Feedback would be appreciated from other peeps with these tunnels and with/without the bars.