Very nice! I have nearly the exact same problem, and same overall measurements as you. I have a stock shield I wan going to cut for a short shield and try to make a laminar-type lip out of the "flip"section for my aftermarket Targa shield (very similar to stock). I may give this a shot, the only thing I would sacrifice is cutting vent holes in my current shield. I may try it first without the vent holes, it seems as if the preassure, not volume, through the laminar section would be greater (?).