I like the wheel mounts, especially since they would solve my frame problem. Most, if not all I have seen, do not tilt away to open the tailgate. That could be a pain if you have to take all the bikes off to open the gate. The reason I have stayed away from the roof mount is ease of loading, and to reduce all that wind resistance up there. I may attempt to modify the tilting top-tube mount one I have to be a tilting fork or wheel mount. I figure two trays, a few 1" square bars, and some minor welding and painting should do the trick. Anyone done something like this before?