In some casinos you can see the last card of the shoe when the dealer offers it to some player to cut. You may also see a second card: the last card of the shoe AFTER the player has cut it.
So you have knowledge of 2 cards and where they are placed. I mean if they are going to be dealt or not. Could this give you a marginal advantage?
Because some times you could see that 2 small cards are not going to be dealt. Or 2 high cards are going to be dealt.
How should you adjust your RC on the top of the shoe?
For example, if 2 small cards are not going to be dealt(or 2 high cards are going to be dealt) should you start with a +2 RC?