rlange - 5:32 pm on Jan 26, 2012 (gmt 0)
@netmeg, I thought exactly the same, why roll out 2 changes at the same time? Surely they want to monitor the effects of each seperately?
I'm sure they have access to the individual scores assigned to each page and domain by the various parts of their algorithms. They probably don't need to keep an eye on the SERPs like the rest of us.