See my post #6 above.Considering a 3/4 roof rack but what are folks thoughts on rain gutter versus load bar mounting styles? The rain gutters flex surprisingly easy if you push on them to rock the vehicle from side to side gently. I would think a loaded rack could potentially create enough momentary downward load encountering a bump on the open road to bend the rain gutters?
The 8 legs clamp midway across the gutter, not on the edges.
Also I have found the full width rack very useful for hanging off whilst lashing/ accessing gear of all sorts.
The low, narrow racks look neater but IMO are less functional.
But, your purpose may vary.