Terrible timing, I know, but I'm working on a AP Statistics project and (for my own enjoyment), if anybody could explain some "basic" advanced statistics, this would be greatly appreciated. Anything on Win-shares, Player Efficiency Rating (PER), True Shooting Percentage, etc. would be nice. I do understand what most of them measure, but I'd like to know how they're calculated and what flaws each system has. I understand that now is a bad time for getting some pointers; Thanks Golden State of Mind!