The ability to add a boundary when placing Dynamic Fill is a great feature, but why is the boundary line 2.5 points wide at the narrowest setting?
Please consider allowing the dynamic fill line to be closer to a 0.5 point wide - or less.
I like to use Dynamic Fill when measuring parking lots that have curves and islands. To avoid having to cut the islands out after a larger measurement is placed I strategically place boundary lines through the islands - typically along the centerline of the island - so that the islands don't get filled. With the current boundary line settings (about 2.5 points wide) you have to place the boundary line offset from the centerline - or be prepared to modify a few control points to ensure you are not double measuring, or missing a portion of the area. With a significantly narrower boundary line you would be able to place the line more accurately.
This also has applications where you are closing gaps in the linework. If you have a boundary line available that is the same width of the linework you click on the centerline of the linework and fill the gap cleanly. With the current 2.5 point minimum width you have to offset your boundary gap filler.
