Since REKO has a PE of .55 is it more likely to perform better in a 6 deck game with optimum rules vs. 1 or 2 deck game considering the definition of PE? Is the PE different between REKO and REKO-Full? Are the "changes in playing strategy" in the definition of PE referring to the addition of full indexes and compromise indexes (higher than +2 strategy) being played during a BJ game using REKO Full?

Playing Efficiency – PE indicates how well a counting system handles changes in playing strategy. Playing efficiency is particularly important in hand-held games (one or two decks.)