Thanks Dan. I am using the Projected Coordinate System UTM NAD 1983 Zone
12N for both the 100m and 2200m transects (line features). Yes the lines
are straight. I am using the densify (editing) tool. Using DISTANCE in
meters to densify. Not selecting any other options for offsetting or
anything.
2 screen caps attached. The first (transect2200.jpg) is the zoom out of the
100m and 2200m transects overlapped with the vertices at 20 for the 100m
(which are being placed accurately) and the vertices at 100 (in theory) for
the 2200m transect.
On the close up of the 100m transect (transect100.jpg) you can see that the
red dots (the "100m" vertices of the 2200m transect) do not line up with
the 100m vertex of the 100m transect. On the measure tool you can see the
actual spacing between vertices on the 2200m transect is 95.65.