I have been nearly obsessed with finding a good set of Parker 51 clones. I’ve had several (from Jinhao and Junlai) that have been disappointing. While they had the look and filling mechanism that I wanted, many of them would fail in terms of writing well, or in drying out. What exacerbated these purchases was that they would all come up when searching for a “Hero 601” on Amazon, which is the pen I’d seen reviewed that was often praised.


You must not have read the article carefully. ;) I’ve been ripped off by sellers on AliExpress four times and have vowed to never purchase another thing through that site.
I have, however, found a really nice reseller that (while a little more than AliExpress) is much better than Amazon, and very clearly labels their products. I have a review of some pens I purchased through them coming up.
And, I think the “no QC” thing is changing. A bunch of the Chinese companies that have gone into “luxury” products (like watches and leather goods) have started realizing that QC is a necessity. Doodle Bud (on YouTube) has mentioned that Asvine has actually reached out to him to get feed back on some of their engineering and QC issues.