Crawfish not SPICY enough need help!!

Simple request I need a spicier crawfish boil current recipe.

100qt pot/ filled 7" or 38 quarts of water 30lbs crawfish!!

*4.5lbs Louisiana FF
*16oz bottle Liquid Crab boil
*1 Boil in Bag seed sack
*1.5 cups Cayenne
*6 Habaneros (150K Scoville units)
*15 bay leaves
*6 onions, 2 bunch celery, 6 heads garlic
*12 lemons, 4 oranges
*Sausage, mushrooms, pot, corn as well.

This last boil was a drop to 150F - 45 minute soak and my daughter and I still feel they are not spicy (hot) enough. We are heat aficionados (taste is 1st), but we want our lips to burn after eating 10 or so.

A note we find most crawfish not spicy/hot enough, so we started boiling our own a few weeks ago, but I feel like maybe crawfish can only absorb so much spice?

Any tips?