I have a compact car. I don't totally see the advantage of the Thule roller. Watching a video of this unit in use, it seems like a) the kayak still touches the rear window or the roof as it slides up and b) the saddles work just as well as the roller for pushing the kayak forward.
Am I missing something?
I currently have the Hydroglide saddles. They work fine except that the kayak runs over the edge of the trunk, the rear window, and the edge of the roof. I'm trying to see how the roller would improve that setup.