I don't know about Bayou Night, but Exclusive does advertise a 50% perique content in its description, which seems like way too much for me. I'm smoking Old Joe Krantz now and looking at the bag, I would guess something in the 10-20% range. While the perique certainly contributes to OJK's punch in the gut, I suspect C&D's burleys are pretty heavy hitting as Big N' Burley also has a pretty high dose of nicotine, but has generally low nicotine components aside from the burley.