Chances are good that the Dr's scale is right... next time you're at the store, see if there are any scales that aren't packaged so you can try them out, or try someone else's scale. I can understand why this would be important, that's alot of weight, quite a nice pat on the back! Consistency is great, but I could see wanting to know for sure! Hope the dr scale is right, and if it is, congratulations!!

Jenn