amazing article; very consise and informative
on splattering: some books I have read (mostly the ones by Japanese manga/anime artists) recommend running your finger against an old toothbrush that has been loaded with SOME ink (do not saturate the brush!); or you could use any stiff brush you have lying around (another option is to use a ruler or some other thin, stiff object to make the brush splatter, but it isn't as responsive or easy to control as your own finger)
I don't quite agree with ballpoints being "bad"- they're very portable, and good for fast, spontaneous sketches. I get good results with them, so it all depends on your personal style and prefference (I, however, have had nothing but bad luck when it comes to gel pens)
