Big Red,looks like your fully trapped.
I do have tri's,now that I'm trying to see if I can put in a scope screen(which will extend a bit past the tri's 6" or so.
I'd like to keep the corner tri's(WC)plus use what's left to put below the screen(2) would do 8ft.
If I can make the screen work(waiting for Stewart)with the tri's,then I'll either do tri's along the top wall-ceiling or
buy a few soffit traps.
As we just finished repainting I took all my tri's' 244's,242's down and started over.
So now just one back corner loaded wth tri's and 2X244's at first reflections(seem to like more than the 242's there).
I'll see if I can post a pict.