Paul,
However, I can see your mind is made up, so what I would do in your position is buy a pair of Caterhams wind deflectors, but after fitting them, take them off again and bend the lower rounded section in more, using boiling water, so that the deflectors stand out more
I know 100% what you mean but have never had the bottle to attempt bending the lower portion in! So, please could you advise on the procedure you used as I'm anxious not to snap them in half!!
Thanks