Good vid, thanks for the time and effort.
My one concern is the part where you say that you're installing the clip "under the glass." It is under the glass, of course, but more importantly, it is IN the anchor that's welded into the seam under the glass. The last thing anybody wants to do is just hook under the glass, missing that anchor.
Thanks for mentioning at the end about leaving that pad on the car. This could have been designed in so easily! A thin nut or pretty much *any* way of cinching down the pad so that the pad stays on the car as long as you wish. Then the rack slips over the remaining end of the nut, and secured (preferably in a more simple way than another nut that needs a tool). When crossbars are not installed, a snap-on cover would be employed just like you mention.
Thanks again. cheers,