You may have missed this in the above post, 8-9 I'd say. I don't really think anything deserves a 10 unless it's earth shatterring so that's a pretty good endorsement. Speed stability has normalized and the whole drive is more smooth and quiet with the new belt. I think I could spend tens of thousands more and only improve mildly, if at all, over the SSM with rim drive and 10.5i. Mine also sits on a Critical Mass Systems isolation platform which is another strong contributer to the solid performance I'm getting in my opinion. Set this stuff up right and it's hard to do better.