The other problem is trying to distribute the Knowledge. Everyone is at different Skill and Knowledge Levels. For me I try not to hoard Knowledge or tricks of the trade, but it is hard for me to sometimes to share the Knowledge and Information, as I take it for granted that they know the Basics already...As long as folks aren't seriously "in competition" (where you tend to hoard knowledge rather than pass it on), these types of events can be great for exercising all sorts of useful techniques and working out TTPs for likely (or unlikely) real-world scenarios.