Managing to recreate Pitboss mode is a neat achievement.
How do you handle the turn time creep problem? If people complete their turns and the game moves to the next 24 hour bloc after the last player submits, the submission window creeps earlier in the day until the deadline until it gets too early for one or more players and they miss a turn. Or do you not immediately process the turns and always stick to the 24H time period even if you have all players?
That's OK...Everyone gets an email saying the next turn is ready, and the 23 hour window begins. Picking 23 hour turns was intentional so that theres never the expectation that turns would end at the same time as to not bias favour towards any particular player over the course of the game.