[ChrisH]

One year we were weighing in and the scale was bouncing between 120.0 and 120.1. After waiting about 30 seconds for the scale to "settle" and the behavior continuing the inspector just looked at us and said "The rules don't say how LONG it has to be at 120"

Once at San Jose the scale was on a basket ball floor. We put our robot on the scale and it was a couple of tenths over weight. The inspector pointed to a spot on the floor next to the scale and said "somebody stand right there". Viola! we dropped half a pound. Interestingly that robot dropped about 2.5 lbs between SanJose and Epcot. That crate sure must have been hot!

As a result I always make sure the scales are on concrete and calibrated.