I tilted the cover.
Not quite an Aerocap.
I wanted to maintain the ability to see out the back window. With the tonneau halfway up the back window, just below eye level, I don't lose any of the visibility of the area right behind the tailgate.
I also still have the ability to roll it up when necessary to accommodate big loads.
My "test" was only 120 miles, and I didn't bother with a-b-a at all (was also calibrating/testing GPS vs odometer) but I did set a new record by almost 2mpg.
http://ecomodder.com/forum/showthrea...tml#post144152
Even if it was a lucky coincidence, the new arrangement gives me more space under the cover, so I can keep it closed for bigger loads, and it gives a little bit of wall to keep things stable as they pile up. And of course I choose to believe that the extra 2mpg was because of the tilt.
