I would definitely advocate the use of glow sticks over flashlights.... they can not be "aimed" and probed into corners or actors eyes. Plus the unearthly glow and cocoon of light really ratchets up the fear factor to previously unheard of levels.
I recommend following up with your insurance company to ensure that this doesn't change anything as far as their ability to cover you on those particular nights. From their viewpoint this could be a larger liability with increased hazards. Happy haunting!
I became insane, with long intervals of horrible sanity.