Review on OHTO Graphic Needle Drawing CFR 150GL005 by Gelin Battle

I enjoy writing with very fine point pens so it was a pleasure for me. I was hearing about Massdrops OHTO for the first time and tried the fountain pen and magnetic cap pens, both of which I enjoyed using. I saw a set of their Graphic Liner pens in different gauges, from 005 to 10. I settled on more 005 options. They were very smooth to write with and wrote very finely, but there is one thing that makes me want to giving them a 3 out of 5 instead of 5. Ink leaks out of these pens even with the slightest exposure to heat. Once the ink flows out, there is no going back. They will lose ink to the point of vomiting ink if left in an environment that is too warm. I lost all 3 of my 005 graphic pens as a result.