potentialgeek - 4:37 pm on Jan 19, 2012 (gmt 0)
The site that slowly climbed back from p. 8 to p. 6, then p. 4, is now p. 1 (#6).
The other that was moved to p. 8, then p. 6, is now p. 5.
(Once again no changes made to either site since last update.)
Recovery time for site 1 was over a month.
P.S. I suspect smaller changes to titles are less suspicious to Google but haven't done any testing to prove it yet.