it's got some softness to it. Flexes just a bit when you apply some pressure. Mine's a reasonably wet writer, especially with pressure. nice and smooth, no tooth, writes from any angle.
Sounds great! I was wondering about the softness because I noticed some line variation on Chinese reviews.
That, unfortunately, was to be expected. Posting doesn't seem to be something that Chinese manufacturers are very concerned about. I expect 626 being at best similiarly possible to post like e.g. Penbbs 308. Possible, but not very secure, not designed for it.
Now that you mention it, I guess you are right. I've never seen a Chinese pen video in which the cap was posted. That would make sense for weight reason as well because Chinese usually like to have a front heavy pen that bears down on the paper. The way they wrote with fps is very different from in the west.