Interestingly enough, on another forum I'm on, someone just reported the results of weighing his fully loaded truck and camper on a CAT scale.
FAWR = 4550, actual FAW = 4320
RAWR = 6780, actual RAW = 6380
GVWR = 10600, actual GVW = 10700
So he was 100 lbs. OVER his GVWR, but still 200 pounds...