For those interested in technical stuff:
For this strip, I doubled the resolution on the scanner, giving me an image twice the size to work with. It made the clean up a little easier and a little harder at the same time since there were 40 different shades of not-quite-white along the edges of all the lines, giving it a very "fuzzy" look. Lamentably, I neglected to modify the contrast and brightness before colouring which left me with a lot of faint gray lines rather than nice solid black ones... didn't even notice until I'd uploaded it.