If your favorite machine's house # (not stand #) changes....it has been "adjusted".

I take from this that if a casino adjusts the hold percentage overnite then I should be able to know by the change in the machine's house #. Where is the house # located?

I think it is important because as sure as I am writing this post someone will have a bad run on a play and post on this board. "The machine is set tight, don't go there."