Lei Shin is a tough one to look at because of the intermissions. We got our first kill on Thursday, but I had 23% and 25.8% on RoR and Renataki's, respectively. http://www.worldoflogs.com/reports/r...?s=8311&e=8921
I don't think the uptimes are much different, but I suppose I get pretty lucky in when they proc. Generally both at the start, then renataki's again directly after the 10 stack falls.