Selective Up Card

I'm currently reading Casino Cheating at Blackjack. I am particularly interested in the chapter on Selective Up Card.

The book asserts that the house has a 2.76% edge against players using BS by always turning over a Ten as the hole card (when one is available as one of the two cards)

I wonder how a dealer using selective up card would affect the odds of players NOT using BS?

Since BS is a reactive technique where as non-bs players are more random and unpredictable in their play, it would be difficult to determine a specific edge but I do wonder what the effect would be.