Mojo - With the 1100's, I had some fun with this. The VP180 was placed on the stands in the system, but not hooked up. I played several movie scenes, and asked various people what they thought of the center channel. They walked around the room, and declared it to be one of the best they had heard.
I then showed the unplugged speaker wires, and everyone was astonished.
Hopefully, Ian will soon do some listening tests of his own. The VP180 is a fantastic center - we are listening to one now with the M100's, and the movie soundstage is tremendous. I have just found the 1100's don't need a center.
