The weight thing never made sense to me. At some point I noticed doctors offices started weighing me on the way in instead of wearing the gown, as you note it's less standardized between readings. Fine whatever, but if that's going to be the case maybe don't needle me over < 5lb shifts in weight? One visit I'm wearing shorts, t-shirt, sandals, and not much else. The next visit its a heavy coat, jeans, and my pockets full of crap. I wonder what the difference was.