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This is one of my first threads so I hope I put this in the right place. I just got another five Jinhaos, and I've been wondering whether it's possible to get a flex nib to put on one of them. I got a 992, X159 I think and a few others. So I've looked at FPR nibs, and Noodler's, but shipping is prohibitive because of where I am. It's like $45 for a $1 nib or something. I have a few cheap low quality copperplate nibs, but they're scratchy and not too durable. I'd like something smooth, and very fine. I don't need much flex. As long as some variation is visible, I'm happy. Any suggestions would be much appreciated. 🙏

Bumped into this on Youtube. Seems to be a clever diy sort of person with various ideas regarding flex nibs. Biggest range of line width I have ever seen worth a look

So... This is an other flex suggestion thread. Christmas shopping edition. I really need help choosing a fountain pen with a flexible nib (Yes, vintage pens are great but considering that near me there is no one to repair the pen if a problem occurs and the fact that parts are not very easily found, I do not want to go Vintage. Besides, taking a fountain pen out of the box with its warranty is ecstasy.) I have successfully "narrowed" my choices down to these. Of course, I am looking for suggestions on the topic. My budget would be about 200$. Pilot 912 FA nibDesiderata Flex Pen with a Zebra G nib and a Nemosine nib (extra, about 10 dollars)But, here is what I have been thinking. The Desiderata pen offers dramatic line variation and the feed is made around the nib, ensuring that the feed will keep up with the nib even when flexed which is the purpose of the nib. Contrasting to that, the Pilot 912 nib from what I gathered is the same on all Pilot 912 nib choices. For example, the 912 with a Posting nib has the same feed as a Pilot 912 with a FA nib. Consequently, the FA nib requires more ample flow. I have seen that this can be achieved by removing the breather tube that is inside the feed. However, I have heard that this modification can make the pen write excessively wet, not write at all if at the process of taking out the breather tube something goes wrong (No replacements parts found so far in order to feel free to experiment on that) or allow the ink to flow out of the pen. I would love to be corrected, but I would also like to learn some facts about the feed. How can the breather tube be safely removed?How can the breather tube be safely inserted again?How does the pen write after the tube is removed?I have heard that cutting a part off of the breather tube is a possibility, but considering that this procedure is irreversible and that such small part can ruin one of the most flexible modern nibs as characterized by some, I would not be eager to attempt such modification. Same applied to deepening the channel of the feed (the feed is plastic and I have not found any seller that offers replacements). Considering the above, I believe I have found the pros and cons of each pen. Pilot 912: Extremely flexible fountain pen, tipped modern nib that does not need to be replaced. Comes new, straight out of the box.Can be used as a daily writer as the nib is characterized "smooth on paper".The feed can be modified for additional ink flowVery weak ink flow when flexing, even a little bit, not helping the nib achieve its full potentialNo spare partsDoes not come tested(!)Modifications can end up in tears.(!)Desiderata Flex Pen Probably the most flexible pen out-of-the-box.Feed is designed around the nib and its capabilitiesAdditional Nemosine nib choicesCan be fitted with a home made plastic nib to satisfy my greed for flexCan come tested (?)Can be fitted with a Brause Rose or other nibs (?)The nib requires care in order to prevent corrosionThe nib needs to be replaced after a particular amount of use(!) Not a daily writer as I would need to swap nibs whenever I want to write or flex as the Zebra G nib lacks tipping (!).I am aware that both pens serve a different purpose, but they are the only modern flex choices. Or are they not? I am open to suggestions .