Very nice and thorough analysis... am impressed.
Small donation from a small miner, sent.
Thanks Smoovious!
Will be interesting to see, if you do this again for p2pool, how forrestv's recent changes to increase propagation of found block info, affects the data. Given enough time of course.

I'm keen to revisit this in another 500 blocks. Hopefully that will be sooner rather than later. I hope the hashrate ups a little bit.