Jane_Doe - 5:30 am on Mar 6, 2011 (gmt 0)
Anyone who has made changes: Have you seen any new cache dates since you made the changes?
Yes, lots. No noticeable traffic changes so far, but then I am not done fixing them up and they still have a number of issues.
As another poster mentioned, they may not rerank the cleaned up sites again right away, otherwise it would be a giveaway as to what works. In fact I am prepared for another drop or two before they start ranking again just as a fake out.
I don't expect my pages to return do to algorithm tweaks as I can see they have some stuff that Google was probably right to target and should be cleaned up.