I love John Harper's Blades in the Dark, and some friends and I are going to be running some one-shot games at an upcoming convention.
I want to have some sense of how much I should aim to fit in to one single session (say, 3.5-4 hours). Assume players that are new to the game (and that I'll be keeping rules and mechanics as simple as possible).
Am I likely to have time for more than one score? How much can I fit into 4 hours? How can I get a sense for how much material to plan?
(My biggest fear is that I won't know what kind of pacing to aim for during a run -- rushing a score in order to try to fit two in, or the team zipping through the first score and me trying to run something anticlimactic or unprepared to fill out the session.)