Wes, lets work you up a new roof rack. Maybe one that is low profile with foldable sides. That way when you are not using it, it doesn't bother you so much, and when you do, it cuts a lower profile.
Aww, damnit, Leary. Now you got me thinkin' again...
**Pouring another cold one.**
Something like the Front Runner, made to cover the entirety of my shell, I've always thought would be ideal. Very low profile, yet large enough to fit everything I need, in any circumstance. And let's not forget: endlessly flexible regarding configuration... I mean, hell, it's one big blank canvas waiting to be painted with gear.
Mount like this, maybe, only with four points for weight distribution but no cheapas$ Yakima stuff?
Outer
Inner
In my mind, I see custom plate-steel mounts welded directly to the rack, similar to the FR factory rack design.... all one piece, of course.
Moving on...
The foldable sides you mention... I like your concept of, "There when you need me, not when you don't." But what I really need is some height on the front and rear of the rack when I carry the canoe, not so much on the side, though. So follow me here: what if there was, on each of the four corners of the flat rack, a piece of vertically-oriented, square steel tube? It would be open to the sky, flush to the rack surface, and about 3" deep. (Roughly the height of the rack) It would be the female side of this type of union:
Then, a male side would drop into each corner, secure via locking pin, and rise about 6"-8" above the level of the rack. The two males on the front of the rack would connect via a crossbar welded into place, much the way a Yakima crossbar works. Same for the rear. Then I could lay a boat across it!
There's my canoe rack, simple, cheap, secure, and quick to get in and out. And without the canoe crossbar in place, I have a roofrack capable of carrying the side and rear lights daily, but bombproof in the event I really need to load it heavily.
Now, time to study metal options to find the best strength/weight combo!
Thanks for the inspiration!