good morning everyone, i have a nakaya portable (cigar) with a broad stub nib (customized by john mottishaw). beside the yama-budo ink from pilot i also use the kiwaguro nano carbon black. but i have a few problems with it: as it is a thicker ink, it tends to stick in the back part of the converter and i therefore have to give it a shake before writing or even push the filling mechanism in order to get the ink to the feed. do some of you have the same problem? do you have a solution for this? i also have a problem with the filling, especially with the ink bottle. as instructed i turn it upside down and back to get the ink into the mold, but i have to do this multiple times as the mold hardly gets filled enough in order to cover the whole nib (and a small part of the grip section). therefore not enough ink is sucked into the converter. do you use seringes to avoid this problem? thank you in advance for your answers. cheers, nils