I've been gradualy learning KO Preferred using the online trainer here and recently looked into an area casino. I think it's table rules for DD are typical for others in the area, at least for low stakes games: Hand held, Double any first two cards, noDAS, no Sur, Ins., Limits $5-500. I'm struggling with basics, being challenged to stay on the count and figure out my play. The pace of the play is very relaxed, so it seems like a good learning environment. I played for three hours one day and came out $250 ahead after dropping down about $150. I don't attach any significance to that other than I can hang on while losing the count and going to BS and making some playing mistakes like not standing on 15 vs dealer 10 on a +5 count. But my question concerns penetration which is a measly 50-60%. Am I wasting my time playing in this setting while improving my game (I'm finally getting CV), or is this a reasonable setting to check into from time to time while I'm learning inm spite of the bad pen.? I didn't look at the 6D game but I believe they allow DAS but no Sur. I imagine the penetration there isn't too great either.