Sorry for not getting back to you. No, I have a great time with it. Of course, now that I have the PA and an Outback, I don't put them both up there. I was ok with the two Outbacks, but that PA is a horse.... I just don't put a lot of stock in the "roofs" of the new trucks. If I had the same sort of arrangement coming out of the most forward stake pockets of the bed, I'd feel better. I've not had a good time with the rack I'm using over the roof because it's not as good a fit as I'd like. I take measures to keep the kayak up there by securing it well to the front system that isn't going anywhere. The rear could just be a cushion if you didn't mind the results on the roof itself. The clearance for the 5Er is whatever you want it to be. Rides well, no noise, no visibility issues. The one thing I do notice is a little "floating" as I get up in speed. Not the truck of course, just the kayak and the front mount getting light. Inch of movement probably. That's just the slop in the fit of the rig itself. Basically the kayak goes airborne...(but it's attached securely to the hitch) it's fun to watch. I know that at that speed, the truck isn't really carrying any weight up front.
I've had thoughts of a brace from the vertical to the horizontal member to eliminate that some but as long as it's secure to the rig, it's not doing anything but reacting to the wind currents under it. It's not violent. I thought the brace would cause it to be more of a jerk action and didn't want that. With a head wind it starts that action under 70mph.