Can't wait to see the pics. Those type of modes are one of the best bang-for-buck IMO, tho I think you're robbing yourself of a few kw's. Mmm, maybe not - it depends on the sticker.
I dropped my M35 to the repair shop to get the rear fixed (only 4 months since the truck rolled gently into into me) & I asked for most of the badges to be left off. Normally this would only net me about 3 - 4kw, but because there won't be any residual badge marks visible (it's being painted), I should be getting an easy 5kw from this mod.