I don't know about that, I think recording in mfp even when I have been really bad and have had a major kcal overload.. Still helps me get back on track.. I have struggled for the last 4 mths but have still recorded all that I have eaten, I have also recorded my thoughts in mfp too so when I look back I can see what I was feeling and how it effected my eating! Because I couldn't exercise I focused on my food and the changes I could make.. I have only been at this for just under 6 mths but I am determined to change how I eat in stress situations - my kids often drive me to eat, when they fight .. Silly huh!!
You are changing how you eat for your life going forward, make it work for you!