I haven't treated the wall behind the speakers yet but I do have some ideas for a permanent panel (provided my wife accepts the idea and I think she will
). I do from time to time (when no one is at home) place a quilt over the 61" TV which really snaps the central image into sharp focus.
Those Ushers look great. I bet they sound as good as they look.
I haven't done any internal mods but I did bypass the tweeter fuse. I didn't notice a significant difference and I chickened out being afraid I might fry the tweeter if the volume accidently got turned up to high so I reversed the fuse bypass.
The "silver surfers" look like little Maggie speaker earrings.