Have you tried the Leptin Reset schedule? That's what I'm doing, and I'm staying really stable. Of course, this was my first week, but I'm even a little lower than my LIW. I'm definitely not the expert here since this was my first round, but I'm VERY happy with P3 so far. I don't plan to do any grains, carbs, sugars, etc. at all during P3 or P4 this time.