Unfortunately, our strategy is the same every single time for Epcot. We don't feel like there are a lot of options.
1st day - Test Track, Mission Space, Spaceship Earth
2nd day - Soarin', Mission Space, Spaceship Earth
We rope drop the other headliner depending on which day. We have also never been able to get a 4th FP+ for either headliner, no matter how early we burned the first 3.