This is complete conjecture, but is it possible that the sling bag could be considered a strangling hazzard? If the strap got stuck behind you or tangled in the harness, it could be bad news. I'm going to try the fanny pack thing and see how it goes--the worst they can say is I have to put it in a locker, which is where I would be anyway!
Well, if that's the case, what about those straps people wear around their neck to hold their FOTL passes? Wouldn't that be a strangulation hazard as well? Speaking of those, how are they handled on this ride (and any other issues). I have a strap but for some reason the plastic case is missing on the bottom. Does anyone know where to obtain a new plastic case to hook onto it? (Weird question, I know, but I bet someone has had the issue in the past.)