Having recently had a new hood I was pondering how I could put glass in the rear screen.
The simple? solution is actually a dual hinged pane. Such a solution would avoid the often require "un zip rear screen before folding roof".
I've also thought this.....
The 'B's wing mirrors are pretty good. The wing mirror to short hood line means that the wing mirrors actually provide (when correctly adjusted) adequate if not almost full rear view. Also with a "wind stop" reducing vison through the rear screen then one begins to wonder if a hood with no rear sceen is actually a longer life hood alternative.