So this has come up for me before with other FFG products. Most tabletop games assume a live, around-the-table format and thus some abilities or mechanics are available a certain number of times a session, or generated at the beginning/end of a session.
This is pretty easily applicable to chat games too, with a session ending when the players are done being IC for the night or whatnot.
But how do you guys handle it for PbP? I'm about to start running a PbP game and trying to determine how long a "session" should be for purposes of how often I do Duty and Force Point rolls. There are really 2 options: time-based and milestone-based.
For time based I'd pick a certain amount of time elapsed in IRL and say that is a "session." I would probably say a session would last about 2 IRL weeks of time in that case.
For milestone-based I'd look at the overall plot of a given mission and break it down into different pieces based on story climaxes or the players accomplishing certain goals. Whenever that occurs, the previous session would end and a new one would begin, with new Force Point rolls, etc.
How have you forumites handled this in your PbPs? Which seems to work better for you? How would you tweak it?