Hi Brandon, as a consequence of my tussle with a BT van and the lack of affordable originals I have resorted to fitting one of these. The radius is pretty mush spot on, but the profile is slightly different. the "flat" part from the rib to the start of the outer curve slopes very slightly as opposed to being pretty much flat on the original. The outer bend down to the rolled edge is less sharp, which seems to make the sides look deeper. even though its the same as the original when placed side by side with the original. Hope this makes some sense !
Cheers, Mick.