"How deep is your shadow box around the screen? I have been trying to think of a way to do some panels to hide my speakers, and viewing your thread, I may have found it....
Any tips on wrapping in GOM? How did you frame it?"
It's 25" deep. You can see some of my pictures showing the framing I did over the subs and above the screen where the center channel is. I built all of the frames out of one of the following thickness of wood- 3/4, 1" and 18mm plywood. all the frames where built with a pocket hole jig and where a snap to assemble( other than the gazillion hours it took to measure them, cut them, etc. I stapled all the fabric in the room and so far I've used 25000 staples and still have about 10 frames to go to cover above the soffit. As for tips on attaching GOM I'd either search GPowers frame thread or use track and hang it that way. I don't mind the woodwork so I built frames. Was easy to get everything perfectly aligned this way. I'm pretty anal though so it wasn't too taxing to me.