It's almost like generation after generation after generation of clever cycle designers ran into the same downsides of trying to turn a bike into a glider. Who'da thunk it?
The only person I ever knew who commuted in a fully faired HPV was not rooted in the same world as the rest of us.
If it weren't so hot here, I would have done the fully faired thing with CrazyBike2 for better efficiency, but I would have baked everytime I stopped moving (which is often, in traffic here). I had a plan to use the flat plastic cylinder sections of 2-liter soda bottles (which I had collected more than enough of at one time, to try it out), but realized after some experiments with just the bottles sitting in the sun that I would never be able to ride inside that, without an active cooling solution that would require a misting system in the "cabin" at intake vents, and exhaust fans sucking air out in whatever place would force this cooled air past me from head to toe. Would also require a "closed bottom" to prevent the 150F+ air from the road surface from wafting up into the "cabin" while sitting there among all the cars at traffic controls.