Tia and Paul tipped me about a Chinese fountainpen, a Hero 501-1, used in China for calligraphy writing. The top of the nib turns up 45 degrees, so you get very lively, thick and beautiful black lines. I also bought Hero ink, even though it's not as waterproof as Noodlers, it still keeps up strong lines. Above sketch was made with this pen: one of the huge beautiful rain trees that line Orchard avenue. Most trees have different leaves on the lower branches, looks like a parasite plant.