I have a Hero 329 (New Version- Not Star Trek). I love it. It always writes smoothly, it has never broken, I love the design (It's a Parker "51" clone) and it was 1 USD! I only have one issue with it. The ink sac is TINY! So, I want to increase the ink capacity by turning it into an eyedropper. I was planning to cut off the sack (it cannot be removed otherwise) and then proceed as if it was a cartridge pen. My only concern is the screw at the bottom of the pen. If I seal that screw with silicone grease as well, will it be watertight? Will there be any negative effect on the ink if it is in direct contact with the grease? I am not afraid of breaking the pen (since it was only a dollar) but I don't want it to leak all over.
Edited by phillieskjk, 18 December 2014 - 21:52.