Aftermarket sunroof for Mazda 5

If a sunroof is partway open on a Mazda5, does the wind still buffet the interior when one of the back windows is lowered?

And the only time I had a sunroof installed on a car was in '92, on my then new '92 Sundance Duster (manual tranmission of course). Cost was about $180 for everything, it was a manual sunroof that you could pop up (two positions) or remove. I smoked at the time so it was nice to have the ventilation when I was smoking & driving.

I'm still thinking about a manual sunroof for my Mazda5 (Sport model, I wanted the manual transmission).
 
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