Because I’ve received this question two times in the past three days, in connection with the release of the Pilot Custom 74 Lavender Fog, I figured I would go ahead and answer because it’s important. To be clear, the Pilot “Soft” nibs are not flex nibs, and trying to force these nibs to flex may result in damage to the nib if you press them too hard.
So What Is a “Soft” Nib?
Some Japanese brands, namely Pilot and Platinum, sell a “soft” version of their fine, medium, and fine-medium 14k nibs. These nibs are slightly bouncier than the relatively stiff standard Japanese gold nibs, and will feel springier and put more ink on the page with a wetter line. That said, there is a fair bit of misinformation out there on whether or not these nibs are “flexible”, and whether you can press down on them to get additional line variation. I have to reiterate - do not try to flex these pens as you would a vintage flex nib, calligraphy nib, or even a Pilot FA nib. While they have some give to them, they are simply not designed to “spring back” into shape like a true flex nib.
I find the soft nibs very pleasant to use to write standard cursive. As you can see, the additional bounce in the nib gives some slight variation to your letters, and the ink flows nicely.
Some of the confusion may stem from the fact that nib technicians advertise these nibs as suitable for conversion to a more flexible nib. For example, I have a pen that I sent to Custom Nib Studio, to which Gena added flex by thinning out the tines. Soft nibs from Pilot and Platinum often make very good candidates for this nib modification, but they are a starting point, not a finished product in that regard.
For the U.S. market, Pilot releases specialty nibs such as the “soft” nib series in specific models - typically the Custom Heritage 91 and the Custom 743. I was thrilled to see these nibs released in the Custom 74 model, which remains one of my favorite everyday writers because it’s nearly the perfect size for my hand. As I noted yesterday, I picked a Soft Fine-Medium in the Lavender Fog because I wasn’t going to let this one go.
The “Ask TGS” series of blog posts features questions from readers and customers that frequently appear in my inbox, social media DMs, and customer questions. When one of the questions has immediate relevance and/or urgency - such as this one - I will bump that question to the top of the list. Some of the most frequent posts are summarized on our FAQ page.