the book explains it quite well. It regulates your homones to burn the fat.. they become depleted and that is why some much of the time we find slow to no losses.... it is more important to trigger these than anything else. I have often gone off for one large carb binge meal and have stayed in ketosis.. but of course had that water flux! Accordingto your stat line, you have not had a lot to lose and are so close to where you want to be. The less there is the slower the losses are anyway.. so stick to it and I BET that you will be successful! AND I AM GOING DOWN THAT ROAD RIGHT ALONG WITH YOU TOO!