Thanks you guys, sounds like I need at least a SS10

Audiotom, I place my speakers along the short wall. What you saw in my picture is not the latest positions of my speakers. I have now place the HT3 about 2/3 into the room, so they're very far from the back wall. And the speakers themselves are about 8.5 ft apart, so they are about 3 ft away from side walls. Doing this creates the best 3D image in my room.
One thing that may steer me towards SS12 is the extra sensitivity, the HT3 is already a difficult beast to drive and SS10 is no better in this respect. But all in all, what I need to find out from Jim is, how long is it going to take him to build one. Because the ship is leaving in September

barry