I have a book my BJ library where an ap visited either the Caribbean or South America. He was cheated by the dealer. I’ll have to double check - the texture of face cards vs the texture of non face cards were different. The dealer could easily determine wheather next card was face or not and could easily bypass the face.

Apparently, he could only bypass 1 card so no guarantee of result - however, it’s clear the impact on house edge was enormous.