Are you having a problem with the leading edge of the doors getting chipped or worse? I had that problem on my Speedy and I read, once again on this site, about somebody who had found an alternate solution. He glued suspension stops that had been cut down to approximately 1 1/2" inside the door jams which effectively does the same thing. Cheap and easy fix and you don't have to drill any holes in the fiberglass.
Hoss
Cip1 dot com lists them as part # C16-311-191 although they are currently out of stock