OK, so I did some CPU tests and on my laptop FL Studio maxxes out really easily so I won't be upgrading it for audio file use because it can just barely do much of anything except for the step editor which it does well for drums.
And then Reaper is still not as easy as EnergyXT or accurate for inputting MIDI data, so I think I'm going to change my workflow so that I start out in EnergyXT getting the composition going, then export stems and MIDI into Reaper, and do the final mix in Reaper.
And I might just start doing everything in EnergyXT if the next stable version comes out.