One really cool thing is the block activity over the past 4 days has bumped the May pool performance into the positive territory. At the current difficulty the 100% expected average is 0.00258894 BTC/TH/Day and the Kano CKPool is currently at an average of 0.00271960 BTC/TH/Day.
That would put us at 105.05% currently after all of the ugly red we experienced earlier in the month! 
I love it! Thanks for the analysis.
We're on our way to "greening up" the 100 block stats for a fully green stats page! We can do it!
Unrelated: I don't want to let my rentals die, but I'm always wary of renting through a diff change. Not cause of the pool, but cause it seems risky and NH rates are always barely at PPS break-even to begin with... Might have to let them cool for a few days and come back. Trusty S3 will continue to chug along in my office in the meantime.
All we need to boost the 100 Block percentage is hit 7 more blocks...that will drop a 471% block and a 411% block out of the calculation. One more block after that will drop a 295% block out of the calculation and the percentage for the Last 100 Blocks will soar!