If I did not love WPW this post would get banned !!!

[ctabuk]

I'm trying not to swear, I'm trying not to curse, but either I have gone completely bonkers or Google is on a time switch. At night time 5.30 pm until about 10.30 am my site is at Number one on page two for my search word (which I'll give if asked, but I'd rather not have hundreds of searches that could screw this thing up)Then after 10.30 am it goes to page 11 at the top, it's been doing this for a whole week now, I'm not complaining, I'm making money.
I just have this mental picture of some guy working shifts at Google and saying "****** ctabuk at page two, he disagreed with me in WPW last week, right mate - page 11 for you" - Then the next shift takes over and someone say's "Oh look, that lovely ctabuk has been put on 11, and he is so helpful at WPW, page 2 for you" - OK you experts, get your thinking caps on!!

[crankydave]

I've been watching the same thing for weeks as well. A #9 position to a #25 position with stops inbetween. The interesting thing is not only the results from different data centers, but the results within the data centers being rotated. It appears on the surface that each of the data centers have at least 2 different sets of results and a total of 4 or 5 between the different data centers.

The page 2 to page 11 results you're describing are very similar to what I was watching on my site prior to and shortly after the last update.

I ended up with the better SERP's after things had settled down.

Dave