Just learned a really useful lesson from this pen today. During assembly, the pen was hard to push together in order to become a completed pen. Today we discovered that human hands were incapable of uplling it apart to get to the refill. I wend downstairs, and got a chunk of leather. Pulled it around the lower barrel, and clamped it down in the table vise. I made sure tightening the vise tightened the strap. I had to put my knee on the leg of the worktable and heave as hard as I could, and it finall pulled apart after 3 or 4 tries. Took a needle file to the raised areas on the transmission and smoothed them out until fitment was smooth. Next time if something feels fishy with final fitment, I will fix it before it goes together. I got lucky that I was able to find a way to get it apart.