Mark Delsing So prep, yeah. I mean I think you and Larry Spiel are actually right at the same time! Depending on what you mean by “prep.”
Building my Fronts in Urban Shadows, definitely prep. But it’s a one-time deal, and it sets up enough material for the 8-10 sessions I intend to get out of it. No way no how am I diving back in to do anything else except maybe set up some custom moves.
I don’t know that I would run…scratch that, I would not run a tactics-heavy, mathy game in this fashion. I also super-hate games that require that approach to play. So I guess the question answers itself.