I want to refresh myself on the Ill 18 and other indices but I lost my Bryce Carlson book. Haven't been playing for years. I want to begin again. What is the best Internet source for AO2 Indices? It should be slightly different than the Basic Omega. I also can never seem to find a chart showing the differences between AO2 and BO. If I'm side counting aces, I need to know the exact index play deviation based on the TC of the main count and also accounting for a certain possible skew of aces up or down. A large skew of aces up or down should affect some play decisions.