My unit scheduled in 4 week blocks. Our schedules are done through the beginning of September. We do not do rotating shifts. I had interviewed at a few university hospitals that did that and was not a fan so took a job at another that doesn't and like that much better. We are supposed to work two weekends a month but I will say it is not kept track of and many don't since there are many, like myself, who enjoy working only weekends. I assume any leadership experience is valued for CRNA school, but I have never heard of many if at all any schools that ask for require it for admission. They seem to put weight on simply leadership within the unit, whether that is with committees, etc. Hopefully that helps!