Todd -- I am keenly interested in finding out if you did indeed put a roof carrier on your 211S, as I have been foiled by both the dealership and R-Vision itself (see my posts to the list in general dated last week). I looked inside the A/C install and the roof looks to be 2" thick with 1/8"-3/16" plywood sandwiching insulation and the aluminum framing matrix. It would seem a no-brainer to simply have the mounting screws go through-and-through with adequate size interior ceiling "washers". I just wish I knew where the roof "rafters" were and weren't. Please email me directly (
[email protected]) or reply to the list. Thanks.