TheMadScientist - 8:31 pm on Feb 26, 2011 (gmt 0)
Okay, I had to go WAY back to find a reference, but if you go to page 9 (20 per page) of this thread [webmasterworld.com...] there are comments about the data rolling first, then filters and backlinks being added in.
I'm sure it happens faster now, and with Caffeine I don't know if the process has changed, but imo it stands to reason for changes this big they may have to do something similar.
I'm about positive I've read much more recent 'officially unofficial' comments on the process working this way too.
Algo gets update.
Some filters and systems have to be 'turned off' during the process.
Those filters and system get added back on top.