WHG - really impressive, that DBing of yours! Sounds like you are on the right track. I think I agree that once the detachment takes hold it is far easier to DB then if there is too much connection. So keep on keeping on!
Meanwhile, I don't know if you have ever come across posts by "Bustorama", but he provided an update earlier today to inform everyone that he and his W had reached a reconciliation back in April and have been doing great ever since. His member name intrigued me so I started to read up on his situation and found his DB techniques to be really very good and effective. He had a couple of different threads running but the one I started with put me about mid-thread Aug-Oct of last year. If you want some inspiration, check out his story in the link below, then page forward to see how things unfolded.