For those of you who may have received the track with an extra 1/16" graduation, keep in mind that the placement of each marking is very precisely located, within .003" or better. In our effort to double check that all the graduations were as perfectly placed as possible, no one noticed that the first piece of track had an extra 1/16 marking. Fortunately it was caught early in the production run. Replacement tracks are being produced and shipped.