I would sure check with your insurance before knowingly letting anyone go past recomended safety depths. There was a reason the fling and spree only let you go to 100' im sure. Caught me several times and i never went back with them when they made me miss a night dive because i went to 103'. Being a dive master, rescue diver, and having made over 500 saltwater dives just rubbed me the wrong way. I started when i was 12 by the way and have been to 175'. 150 to 160 is now my limit cuz i got narcd out the wazoo! Had to stop and think what was going on and look at my bubbles. Crazy crazy feeling!
Like others said...no stopping at the Gardens with guns on board. Even if you don't take them down its illegal. Not that you will probably ever get caught if you do but the risk with this being your business is not worth it.