The 'problem' with the new SAS was definitely one of the first things I noticed. And after a LOT of experimenting, and reading through all 563 comments on this thread, I've come to this conclusion: -SAS does a pretty good job at killing rotation if you have enough control surfaces -SAS does NOT seem to be using the control surfaces to their full potential, requiring you to add more control surfaces than you normally would to get the same effect -SAS kinda, sorta holds attitude but not really.. What I mean is that there IS definite drift in the attitude, especially apparent after you start a gravity turn after launch. If you have enough control surfaces (by that I mean winglets, gimbaled engines and RCS), the drift seems to lessen. But the fact that you can manually correct for the drift with less control surfaces means that SAS is NOT using the control surfaces to its full potential. -SAS does appear to attempt to hold attitude better if you tap 'F' when you've reached your desired attitude after rotating, rather than at the point where you let go of a rotation key. But this looks to me the new SAS settles on a new attitude based on where it has to do the minimum amount of corrections to kill rotation. The more balanced your craft, the less noticeable. Sweet.