I finally bought the B7 and I am very happy with the picture quality in every format, either modern or retro. It plays everything arcade related mostly at 5x. I haven’t tried retro consoles yet.
Is there a danger if I change backporch, sample rate and the rest of those settings in order to adjust aspect ratio of Ultimate Mortal Kombat 3? I managed to fix it somehow even though it plays in a very odd resolution and looks a little bit pixelated.