Cool. One suggestion would be the take the section off and soak it overnight in just plain, cool water...which will show a *lot* of coloring. It's useful to do, to avoid the old color bleeding into the new one...and sometimes. it is rare but possible for 2 different ink formulations to *not* like each other. This is more likely when switching brands. I actually limit my iron gall inks to specific pens, to avoid the possibility, because iron gall is inherently quite different from a purely aniline ink.