Cam, they put you in the right place. By putting the edge of the speaker past the edge of the shelf you eliminate that fast reflection of the tweeter off the horizontal surface of the shelf. I had the set up briefly, and it was muddy and hard to understand dialogue.

Panny 3000 PJ, 118" Carada, Denon 3300, PS3, Axiom QS8, PSB 5T, B&W sub, levitating speaker wire