When is the best time to tell the STBX? The main thing driving my timing for starting NOW is a pending cross country move that I'm not interested in making. It's still some time off (a couple of months at least).

I understand the "best" time is likely after I have a whole plan set and ready to file, but I don't want to get op far down the planning for this move just to change things up at the last minute.

So those who've been under this kind of time crunch, should I bring it up early, or trust the process?