this is true - I should do more with ink myself. Some of my best drawings were done with a dip pen. My tool of choice is pencil, but all the way, not for plotting or sketching. I use kneaded erasers and electric erasers for special effects, but not to undo something. I paint with acrylics also, and when they are dry, they are permanent, like, almost: you can reconstitute them with alcohol and thus wipe them off, but disturbing the layers is not the best idea, it shows.