yes i've read
http://www.blackjackinfo.com/interviews.php .
it's been some time since i read it. as i recall in the interview Zen mainly refers to borderline situations for the application of intuitive actions and then mainly for index plays.
i'm wondering if he ever uses intuition otherwise, such as for ramping up bets or what i don't know.
for my own part, it's hard to explain but at times when i'm playing i experience what are like extremely obtuse and extremely fast paced but recognizable logical based thoughts that are tied to what i've studied about advantage play blackjack or tied to my past experience while playing advantage play blackjack that work to influence my play decisions beyond what an orthodox counters game plan would call for.