Helmets are strange, the aero eyeball doesn't hold a lot of weight (in my experience) with them.
In my own case years ago the Wingspan tested better than things like the Javelin and A2... they all fit pretty well against my back. Later helmets (Spec TT) tested better for me, and my last trip to the tunnel the Aerohead came out best.
I was working with another athlete who had a Wing57 and I suggested trying some other helmets because the 57 is usually not so great. We ran them through aerolab a few times and the 57 was decidedly faster for them than the Aerohead and the A2, I was surprised enough that we re-did the tests another day... all of them fit the athlete pretty well imo. I would have guessed it would have been the slowest, but that's what guessing is good for. Even if the other helmets are better 9/10 times it doesn't mean it's better for YOU, and I have come to the conclusion you have 3 ways to pick a helmet. 1.) Field Test 2.) Play the odds 3.) Guess/pick the one you think looks coolest and tell yourself it's best.
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