I know most of you know about this already, but after reading several black matte threads I finally decided to give it a try... Why did I wait so long? This has to be the BEST tweak I've found so far. It definitely improves the picture image, and I know of no better proof than this: before she actually saw them in use, my girlfriend said the black mattes were a--and I quote--"boneheaded, retarded thing to do." A few nights later we were watching a movie and out of the blue, with NO prompting from me, she observed that they made a big improvement. If you knew HOW skeptical my girlfriend is about all things home theater, you'd know what a huge acknowledgement this is. Now I enjoy the rectangular image floating in the darkness so much I think I want to matte the readouts from my equipment...The darker the better, I say!