[ecomodded]

Well that's no fun is it.

I think your forgetting that work or force is not done without energy , adding a wind load will not benefit fuel economy , removing wind load will. Driving at 1500rpm will save fuel over driving at 2500-3500 because it takes more fuel to drive at higher rpm's.

My understanding is very different then yours.
The load theory does not trump all other conditions , not by far , the load theory is more about acceleration then cruising purposely with a wind load to strain your motor , or make it do more work while cruising then necessary..