What I find amazing with the Chartpak marker nib is I cannot ruin the tip no matter how hard I press into the surface of the paper. I can lightly float the nib on the surface for a thin line or press it down to bleed and heavy up the stroke. Instead of doing a quick sketch many times over I can now get the sketch down within the first or second attempt. No need to rework the strokes in overlays as I am getting what I want with the pressure applied with the marker nib. It's a very fresh method without overworking a sketch and loosing the initial rhythm.
When I scan the sketch all the visual information is there for a vector template. No need to guess where to put the lines or thicks and thins. A more direct approach to create vector lettering. This is turning out to be a wonderful life and lettering experience.