: I re-organized the data into columns of X and Y coordinates for
: each of the form long positions (0.5ft, 1ft, 2ft, etc...), and
: plotted them using the X-Y Scatter Chart ("Smooth Marked
: Scatter" type).

Make the scales equal and you'll see there's not much of an issue. The flat spot you see for form 0.5 is only 0.5" wide. Some people ignore that entire form because it's so small.