Randy,

No, the room picture is not to scale. The side traps are about two feet away from the end of the corner trap. I used the trusty mirror trick. I did also view it as a "Pool Shot" and the bank shot would hit the side trap in the real room.

I had the sub in the corner for my first measurements. There was a HUGE dip around my crossover point so I moved the sub closer to my sweet spot. The difference was noticable sonically and on the graph, so I decided to use that location. The sub is right up against the side trap like in the diagram, but os only three feet from the corner of the room.

I just finished another reading, this time I moved my CD/DVD shelf to the back wall and the table to the side. The bookshelf should be better for disfussion against the back wall. I will post soon.