Hi All....Received a bottle of this last week....filled up my NEW Sonnet Extra Fine Point fountain pen...WOW......SMOOTH writing.....smoothest EVER in ANY of my three Sonnet's....I cannot beleive how this pen and ink GLIDE across plain old copy paper....this has to be THE smoothest combination of writing I have found to date...due to the generous Parker Nibs though this pen writes more like a fine point than an extra fine point though....the color of this ink is VERY, VERY BLACK...no light chalky undertones like sometimes found in Manhattan Old Black or Polar Black..... I'm sold on this one....Heart of Darkness is a keeper...at least in THIS pen.......
Pete