Unlike the EDC model, the Slim Click suffers from a couple of issues:
1. When the ink cartridge is not in the deployed position, a rattle is present when one shakes the pen. The EDC does not have this issue.
2. Every so many clicks, the tip of the ink cartridge gets stuck in an overextended position. Not sure if this is due to the internal mechanism or the cartridge. Again, does not seem to happen on the EDC model.
Big Idea have been amazing in providing a replacement for the Slim Click due to another issue, but the issues above are present in the replacement as well.
Another general design consideration - the grip rings machined in to the barrel should go up twice as high in the barrel to allow for a better option of positioning one's grip.
Thank you.