My new speaker brackets will be arriving on Friday and I'd like to have some opinions on placement. Currently, my direct-radiating rear speakers (Paradigm Mini Monitors) are positioned so the tweeter is roughly in-line with the viewers' heads while sitting on the sofa. The new speaker brackets (seen in this link) will put the speaker out from the wall a couple of inches and can accommodate a 10-degree tilt up or down. Since the speakers will be right next to a room entryway (room picture in this link) I would prefer to have them as high as possible to keep them from being bumped while people enter and exit the room. I'm thinking of placing the speakers 6-12" below the 8-foot ceiling. Creating a more diffuse rear soundfield is not a problem as I've always appreciated the diffuse nature of dipoles for rears. Would you place them this high? If not, how high would you place them?