TheOptimizationIdiot - 4:25 am on May 1, 2013 (gmt 0)
Yeah, I'm still seeing multiple resultsets or data center misalignment that seems to have started a bit before they announced Panda being integrated into the main algo, which could account for the traffic ups/downs with seemingly no change in rankings.
I'm on the opposite coast as someone I've been working with and we consistently see different resultsets, so the testing/misalignment could be location based to some extent. I'm seeing the most obvious signals in site: searches still where the indexed page count will vary +/- 15% or so throughout the day or even over a couple of days.
The most recent check was down in indexed pages by nearly 30% from earlier today but the results I watch regularly appear to be about the same.