Just saw one move from not on the first three pages to position four, but not until after I switched browsers.
So when I searched for it 20 minutes ago in browser 1 the result wasn't on the first 3 pages. When I searched again in browser 2 it showed on page 1 position 4. Then I searched with browser 1 again and it was page 1 position 4 there too.
Uh that seems a bit odd to me.
Update: Also seeing a difference in results when searching for an area depending on whether I use the word in or not. So if I search for "widget area" I'm getting different results than when I search for "widget in area". I have noticed this before but didn't think to mention it until now.