While the double bubble does take a bit to get used to looks wise, you'll love it at faster speeds on the hgwy and when your in the saddle, doesn't really matter what your windscreen looks like as long as its got you covered.
I have the ZG dark smoke, double bubble and I am satisfied with it.
Just so you know. Tinting the windscreen would not be a good idea. Window tint does not adhere to plastic like it does on glass. After being in the sun for a while it would bubble up fast and discolor.
Grr I can't decide! I agree that the double bubble ruins the lines of your bike, but will be better at higher speeds. Looks like I'll just need to decide at some point.