I recently moved over to writing my letters using a dip pen (in no small part due to curiosity from browsing this forum). I enjoy it quite a bit and have been looking at going beyond just india ink. I really like some of the colors of from J Herbin inks (empire green in particular), but have read that FP inks don't work well with dip pens in many cases. Does someone have experience using a dip pen with this particular ink or something similar?