We have a Ford Windstar and a Jeep Grand Cherokee and are looking for a ski rack or cargo box for the roof and it must be compatible to the factory racks. I think I am leaning towards the Thule 726 roof rack with their fat mouth clamps and locks. Seems to be around $185 for the complete setup and slides out from the roof to loan and unload. As for the boxes, looking at either the Thule Cascade 1100 ($233) and Thule Evolotion 1200 ($332). Major difference between the two is the Evolution MUCH easier to install and remove. All prices are Rackattack.com.
Is it worth the extra $ to get a box? How do these cargo boxes do with wind resitance/mileage in comparison to a ski roof rack? Do you leave these boxes and racks on overnight or take them off and store in the car/hotel etc.? In other words when locked are they secure on the roof? Would you leave the boxes on at the ski mountain?
Lots of questions...
Thanks,
Marc