My scale started jumping all over the place last week. One minute I was 205 and the next minute I was inching towards 300lbs. It acted exactly as most measurement instruments do when the batteries die. After replacing the batteries, the stupid thing still didn't work. So, yesterday, I went out and got a new scale.
I've still been following plan all week, I just haven't had my numeric motivation to back it up.
Then, to my surprise, I reached 199.8. Whee!
Yay for the new scale!
I'm excited though, because that weight makes sense in my graph at this time. So, I figure the scale is probably reasonably accurate. I plan to test it later with something weight specific.