I see that the specs say 179 lbs (or so) on the Subaru Outback roof rack. I have a Yakima Space booster (35lbs) with some stuff in it (35-50lbs?), and am considering a single bike roof rack (not quite 12lbs) for my bike (25lbs), which brings me to 122lbs. Well within the limit. Any experience out there with this sort of weight/configuration?