I have been having some fun with the Masterpiece 60mm marker.  I quickly exhausted the speedflow black ink it came with.  This ink has the best effect through a new nib.  I was unable to get this quality of streaking with any of the other inks. All of the following drawings are 18″x24″ in size.

Seriously though, look at these streaks:

Then I experimented with the purple One4All ink.  Straight out of the bottle it is a little too thick to flow easily in this pen.  …