I guess I could... the V1 Rear Wing does act a bit like a rear diffuser too with the extra wings at the lower elevations but I guess I could "intensify" the effect.
In my mind, the bumper is for practice only so I wasn't looking at it as a permanent deal at racetime. Maybe I'm trying to be too much of an Open Wheel racing purist here, but to me it just makes sense to keep it a bit more dangerous... it is F1 after all.
I'm planning to work some stuff either over the holiday or somewhere in January, EMU is requesting some aero-gear too so there should be some more options in the near future.
Got some other things about to be newborn too (one long overdue, one semi-revolutionary)... I'm gonna have some serious track testing in my near future!