Last weekend I built a carrier for my hang glider that fits on top of the Escape luggage rack. It is like a large ladder that is fitted to two Yakima cross-bars that are attached to the luggage rack.

While mounting it I noticed that the towers of the luggage rack are just pure plastic -- no metal at all!

I'm concerned that while this thing is mounted, with 150-200 pounds of payload on the roof, popping down the freeway and I'll hear a crrrack! and the whole thing comes loose. Is there an after-market luggage rack that is more serious?