Well I looked here, as I said I would on your YouTube channel, and I do wish you gave us a little bit more information about the nib and the feed and how well it handles some intricate drawing situations. The line seems very uniform which suggests a very hard nipple, and I'm wondering if there's any flexibility there, whether there's any line variation at all, and if the feed can keep up when drawing gets fast and furious. Any additions you can provide would be greatly appreciated. Thanks!