This or datacenters are not aligned. I can't decide which it is (sort of leaning to datacenters not being aligned right now but I've change my mind about 10 times on which it is). Either way, I've been seeing crazy cycling in things too.
Noticed that the last few days, traffic has dropped (a lot) and the Googlebot has been pretty much absent.
Today, however, the Googlebot is on a feeding frenzy - 1000+ pages being crawled per niche/category on our main site. This rate It should have the entire site recrawled in a couple hundred hours, lol.
Downside - still virtually no traffic to speak of since Friday night 11:04PM EST...