I wouldn't be worried about that, the conditions have more or less been the same for a few years at least. Not to mention it is a bigger store. I don't think one weekend of increased card counter activity will alter their behavior.
They seem to hold the attitude that a few card counters is acceptable damage for the insane profits they get by their tables having virtually no downtime.
Now thats thinking outside the box. Don't worry about the group pictures either?
CP, did you get my PM?
BJC