You're probably right. The problem/concern is having a bunch of "new to me" shooters. I can't tell you how many times I've been indexed/muzzle swept by someone that was "just showing someone something real quick." or "I've been in the X service for Y years" etc etc. No disrespect intended but rules are there for everyone's safety.. after having been indexed/swept.. I've limited it to one "new to me" shooter at a time.
I could do something like no uncased weapons except those being shot.... hrm... ya know... that might be a solution....
This would be my concern as well...some people have a different version of safety or just don't know any better. No uncased rifles is a good solution. Also consider everyone has to use a chamber flag and make sure its inserted unless on the line, pointed torwards targets and ready to shoot(line hot).
I hope you can open it up to others here, I would like to attend if so.