I made my cut down of the EX. I tried the 10" recommended by Ferret, but still was pretty loud and felt like the wind was hitting my chin or just below. I then went bold and cut it down to 9" and 9.25 from the ignition. Wind is hitting the top of my shoulders and neck and the helmet still has wind noise, but no flag flapping. Chest is still air, except for what comes up hits around my waist area from below the shield.
However, I'm getting bugs on my helmet and shield again. Seems to be a trade off, bugs or flags flapping. I'm starting to think the EX isn't a great choice for the CB1100. Makes me question Rider Magazine's review.