Just outta curiosity, which fancy new brush pen is that? I’ve been experimenting with a coupla new ones lately myself (a Kuretake No. 13 and a Pentel Pocket Brush Pen, also known as a GFKP). They’re actually for calligraphy, but I like the line variation I get with them. Before that I was using a Faber-Castell PITT brush pen but the tip on that sucker lasts about 15 minutes, plus you don’t get as much variation in line weight.
Anyway, bla bla bla.