I'm currently puzzling out lists for an upcoming tourney, and weighing up whether to take a TAG - specifically, a Dragoe in Shock Army. I've had a few people mention to me that there's value to taking a TAG to lay into those opponents who bring lists that can't fight a TAG. The questions therefore are: how common do people find lists that can't engage into a main battle TAG to be? And more importantly, how do you recognise those lists just from the information you have before list selection (i.e. opposing faction and scenario).