Does anyone have any hard data showing whether the gas mileage is affected with the addition of a tonneau cover? Honda's cover sucks, but I am considering one of the roll-up models. -- Dana Rohleder Port Kent, NY "We look forward to hearing your vision, so we can more better do our job. That's what I'm telling you." - G.W. Bush, Gulfport, Miss., Sept. 20, 2005.