Wheels. Bontrager v Mavic

I am after opinions on the Bontrager Aeolus 6.5 or 5.0, or the Bontrager Race X Lite carbon aero compared to the Mavic Cosmic Carbones. I really prefer the Bontrager Aeolus 6.5, i mainly race on flat to undulating roads so i think the most aero wheel would suit. I want to hear from people who have used any or all of these wheels to see what they think. They will be tubular wheels no matter what but if you have only experienced the clinchers then your opinion is still welcomed. The reason it is these wheels is because that is what my sponsor stocks. The bike i am getting comes with Ksyrium ES so i have got some hill climbing wheels all ready.

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