The "secret" to using this rather heavy pen is to actually use it posted. The cap clicks into place. I normally don't post my pens. But due to the fact that the section is nearly non-existent, I understand why they made the pen to post by using a mechanism to secure the cap to the barrel.
This review on YouTube was quite helpful:
https://www.youtube.com/watch?v=drkVfgi530k
For the money, it's tough to go wrong with this pen. I just won't use it for extended writing sessions. It's too heavy for that, at least for me.