That's what I do too, I change it when it goes down but not when it goes up. That is, as long as I haven't been cheating. The way I see it, the little ups I get are because of TOM or water or whatever and they're not real weight gains. However, if I've been cheating then they are real gains and then I put it up after a few days. I haven't had to do that on this WOE yet, I'm just starting my second month on the plan.

Nope, my weight stat stays the same until I lose again, no matter how long that takes or how many little fluctuations the scale makes. Works for me!