I went with 50%, but not really because it makes or breaks a transition. It's a few things.
I guess I kind of used relationships as an anchor to keep me from transitioning. With each new relationship, I was able to keep the trans part of me at bay less and less. The last one was on the back burner for less than a week. That's when I realized a transition was imminent.
I've always known relationships were a lost cause for me, but with the transition on the horizon, it makes me think that doesn't have to be the case, so now instead of being an anchor to keep me away from a transition, it's something to look forward to during and/or after.