Axiom Home Page Forums General Discussion Home Theater Mount center speaker behind screen?

I am contemplating the design of a front-projection HT. I would use M22ti mains (on order) and a VP100 or VP150 center.

The 16:9 projection screen would be between 80" diagonal (39h X 70w) and 90" diagonal (44h X 78w).

I am wondering if there is any merit in building the screen so that the center speaker is behind it, rather than above or below.

The principal advantage, other than a built-in look, would be to keep the planes of the left, center and right speakers roughly aligned instead of widely separated vertically. I don't know if there would be any significant damping by the screen material.

Does anyone have any thoughts or experience along these lines?