I tried out some PR Ebony Purple in my Kaweco Sport last week. It didn’t go well. I figured I hadn’t flushed the pen well enough when I tried to put in another ink, because it kept acting like it was drying up. I finally gave it another flush with soapy water, and after that it worked fine with the Noodler’s North African Violet I put in a cartridge (with a syringe).
Tonight I decided to try it with the PR ink again, and… it clogs the fuck out of my Kaweco, apparently. I had to completely flush it and re-ink it with the N.A. Violet again. Hopefully it will behave now.
Oh, and this happened:
And that’s after two handwashings!