@Surasanji A flex nib is a nib that easilt bends under pressure. When it does the tines spread out and the line width drastically increases. This lets you control line width as you write to create fancy looking letters. Its a form of cursive italic that takes a lot of practice, the other easier form just uses a fixed wide nib and you vary line width by angle.

A flex nib, if its a good at flex, feels more like a paint brush.

@freemo That makes sense. Seems pretty fancy, but very cool stuff.

It be kind of cool to sign everything with a paint brush. Like pull it out at the store and sign your CC receipt with a paintbrush.

Presumably you'll do the proper Dali style thing and have an epic mustache and cape while doing so.

@Surasanji Well clearly, no one in their right mind would expect me to sign something if I dont have a cape with me!

They actually have a type of fude pen that has a literal paint brush for a tip. It is filled with fountain pen ink. They cost like $6 and i ordered one of them too.

@Surasanji Here is an example of Flex Writing in action. They use the exact model of pen I ordered in this video too. Look how much the nib bends: https://youtu.be/cpO8-Xen9Wg?t=103

@freemo Very cool stuff. I mean, I can't do it, but it is very interesting to watch.

I've just got a ball point pen. It does have a clicky button on the top, though, so at least I got that going for me. :P

@Surasanji There are clicky fountain pens too :)

@freemo Then I have nothing. :(