In that shipment I just received, I also got a Kuretake brush pen (here or here). I had one before, but I cut the brush and ruined it. I can’t remember what I thought I was doing. Anyway, after that I tried the Pentel GFKP. I think Craig Thompson said that’s the brush pen he likes to sketch with. I like pen-and-ink more than brush, but I love brush pens and sketching with them occasionally. So that’s why I decided to get a new Kuretake. But I still have my Pentel GFKP.
This then leads to the obvious question: which is better?
Well, they are pretty similar. The Kuretake seems to be able to give a finer line and the brush itself seems springier; it regains its shape faster. However, this may be due to the fact that the Kuretake is brand new and the Pentel I have is a few years old. Yet one thing I definitely like better about the Kuretake is that it has a metal body, while the Pentel is plastic. I’d rather grip metal than plastic. This may seem like an arbitrary preference, but I’m sure some of you know exactly what I mean. So in the end, the scale tips in favor of the Kuretake brush pen.
As a side note, I had a Platinum Converter and filled that from a bottle of Carbon Ink I also got in the same shipment. This means I don’t have to throw away little plastic cartridges and the Carbon Ink is very nice and flows well.