The note on the circle zone is only partly correct for caster units - the other models need to be in formation, but they do not need to be in the zone. Non-caster units do need all models to be in the zone.
I love this thing! The only change I would like to make is to have a line or two where I could write in my caster or list name and my opponent and the same. Ok, maybe another set of boxes to tick for the scenario, too. I currently just scribble these things in in the margins every game.
Not quite a competitive player, yet, mostly because I don't have time to go to tournaments.