I tried it and so far I am very pleasantly surprised with the results. The downside is I have lost some of the SPL calibration across the front- my front 3 were -2.5 front left, -2.5 center and -1.5 right. Interestingly enough I really dont hear the right as being much louder- if at all. The change was noticeable right from the start. I didn't have enough time to change one parameter and then listen- so I ran Georges well laid out program and also I changed the Trifield and music presets so they are flat on the center ch eq as opposed to using eq1. I should have gone to the flat setting years ago. The result though, is quite noticable- the sound is fuller, smoother, there is more weight to the sound and it just sounds more refined and spacious. I listened to Abbey Road, some Joshua Redman, some Rush, even some Led Zeppelin- they all sound better- if you would have told me I was listening to v6, Id have believed you. On movies, I tried avatar and MI3 and both sound fantastic. On movies the difference is not quite as noticeable but it is there. To borrow an overused phrase, "the veil has been lifted" is the best way to describe it. I think for something to truly be considered "huge" then it has to be like when going from one speaker to seven, but in the context of our hobby and hearing more details and getting clearer and fuller sound, then I would say this qualifies for the "large" improvement category and I voted as such. This is great!! Thanks George- and also to the other HHers for all your thoughtful discussion.

Best regards,
Jerry
Main System: 861v6, DSP8000s in corners, DSP7000s Center and Sides, 1-9 humans.