In last night's 4e D&D game we managed to fit in two big combats, some roleplaying and some exploration. This is unusual for us - we often struggle to get through two encounters in an evening session. Using the escalation dice from 13th Age speeds up combat, but I think we saved a fair bit of time because I drew the two main encounter areas before the game on battle mats. They also looked a lot better than my usual scrappy drawing under pressure. Obviously this only works if you know the encounters are going to happen, but in this case I did.