I remember seeing another member who did this covering of the rails with vinyl, and it turned to sh*t within reasonably short time.
I would recommend to anyone to remove the rails and cover them separately if you require them covered. That will last a lot longer than not doing it.
Another comment would be to loosen the inner lining in the cabin and loosening the fin to avoid the hassle and possible edge loosening around the antenna. That was done on mine. It's a hatch though, so it's muck easier loosening the inner lining from the rear.
Sorry for the semi high jack, wasn't intended as such
