Ooh, awesome question!
For Apparent Secrets, I have an extensive outline, calendar, and plot beats written in advance to maintain continuity. There are tons of "fixed-firm" events and plot points that need to happen (in order) for the narrative and mysteries to fit together, so having everything plotted in advance is essential. As of right now, it's about 50% written, with more chapters coming after the Action Fantasy Tourney wraps up. 
That said, for Of Lowlifes, Lutes, & Liars, I have a rough idea of the events that need to happen in the story, but I allow chapters to form organically as time goes on. Honestly, I treat it like a one-person Dungeons & Dragons homebrew, with a few "fixed-firm" events in mind, but nothing concrete. 
Here are links to both, if you'd like to see what kind of results each method yields: 