Just gave an aircraft rental check-out to one of the guys that was a pre-select on the last board and got back from OCS a week or so ago. He gave me the rundown of what to expect.. Told me that knowing Appendix B isn’t EXTREMELY important. He said about a quarter of the guys in his class “rolled” due to the physical tests. He was also telling me, there were college athletes rolling on the physical tests because of shin splints from their bodies not being used to running 20 miles a week on concrete. He said it’s more of a matter of how much pain you’re willing to endure to make it through. Apparently they’re starting to “up” the intensity of OCS, he was part of the first class to experience that. His class had 4 people faint the first day. About 60 out of the 100 guys that were in his class got rolled, mostly from physical strains. Not trying to scare anyone, just coming straight from the source.