It's your call, man. Just be aware that the DR book was written many years ago, while this board is a living, breathing organism that serves to develop MWD's philosophy and keep it up to date. Something like that.
Also keep in mind that most of the chapters in DR are for couples that haven't had a BD. So a lot of it doesn't apply to us here. Sure, there's a lot to learn about cheeseless tunnels, 180s, goals, etc. But the concepts people use here about pursuit/pressure and so forth, those are more important now. Focus on the chapters about LRT and infidelity.
You can do it if you want but keep your expectations at zero and be very cautious not to write/say/do anything that could be interpreted as "I disagree with you and want you to reconsider and here's why."
One of Sandi's rules is to not insist on showing her the changes you've made. That sends the message, "Hey, look what I did to try to prove that your feelings are wrong and win you back."
Just...tread carefully. I did a lot of that kind of thing before discovering DB, and I pretty much ruined my sitch.
H: 35 W: 33 M: 11 T: 13
4/10/18: I discovered A and confronted ("BD1") 6/23/18: I moved out 8/31/18: MC ends ("BD2")