The point is not as sharp as it should be. For fine and precise line could use some work. In addition, the ink can not properly in the tip and ended up making a black barely drawn, as if there was already enough when he was nine. It is necessary to store the tip down and draw his line as fast as possible without making too much retouching ... For me impossible. I am always obliged to use another to refine.
I also point out that this was not blister. It should. Just like a razor or a toothbrush ... After all it is applied to us and who can tell me that no one is stuffed into an inappropriate place before I send it?