-don't recommend they switch taggers after a couple of games. Even though you want everyone to get a fair chance at using both guns, they need more practice on just one tagger to get familiar with it.
-when doing the initial training, have both taggers be the same type. Have everyone (but the example player) gather around you and explain how it works.
-don't forget to mention the rails (aiming notches) for the deluxe tagger are located on the side, not the top like the master blaster. Someone got all the way to the end of the session without knowing how to aim; he must have been pretty frustrated.
-find a good location and stick with it. It's toooooo big a park to be continually changing locations.
-realize that some people just aren't into lazertag and won't enjoy it as much as you. Don't feel it's a reflection on you. Although I did make some mistakes, there were extenuating circumstances that negatively affected the game that were out of your control; extra unannounced players, heat, players not into LT, etc.
-go back to Laurelhurst Park. I have had the best games so far there on the stairs.