Looks very well thought you and congrats on your gains(or losses) thus far. I recall with the Leangains that Martin recommended that women keep their fasts at 14 hours and men at 16 hours?
"And for crying out loud. Don't go into the pain cave. I can't stress this enough. Your Totem Animal won't be in there to help you. You'll be on your own. The Pain Cave is for cowards.
Pain is your companion, don't go hide from it."