tedster - 7:53 am on Mar 15, 2007 (gmt 0)

It's like a glass ceiling somewhere around #50. Anyone else experience that?

If I get that kind of improvement, I think I might stop making changes for 4 weeks or so. Google's historical tracking of the site may also be filtering the full improvement and only allowing it to return to its full glory by degrees. Further tinkering could actually slow recovery, if done too soon.