I'm listening here because I'm in the exact same position. Exact. AH has 50+ days clean. I have an appt tomorrow with the lawyer to figure out whether to file a legal seperation or a D. Have you looked into legal sep? That basically is a D, but you're still M. Custody, child support everything is figured out and it can be switched to a D.
IRL he's got a long road ahead of him. I don't know how much more you want to invest. I will say that AH is alot different after 50+ days, though he has a lot to do as far as growth. What was your AH using, how long etc??