I am relatively new to the fountain pen hobby (about 5 months) and I wanted to see if someone might be able to explain to me how Kaweco Rollerballs work. I've HEARD that they can be used with fountain pen ink cartridges/converter, but I've also seen them with regular rollerball refills. It might not be a lot of money, but I don't want to go ahead and buy a $20 pen if I'm not going to get what I want to expect. I bought a Noodler's Nib Creeper Rollerball, and I like it (I really do), but, the first tip lasted me about a month and the second tip lasted less than a week.
If the Kaweco rollerballs CAN use fountain pen ink, I think they might be a better long term option than the Noodler's Nib Creeper. But, if they only take rollerball refills, that might just be money down the drain for me.