I just received my new blue stonewashed Kaweco AL sport, with a fine nib. Looks really great with the new vintage clip, but sad to say it is one of the driest writers I have ever tried. I really don't want to return it to the seller, as it was bought via Amazon, and came from Germany after nearly a months wait.
Any suggestions on how to improve its flow. The nib unscrews as a unit so there is no way to access the nib itself, that I know of. I tried the blue ink cart that came with it, then tried a Diamine blue-black cart, then flushed that and refilled an empty cart with Waterman Florida Blue, so I don't think the ink is the issue. I gave it a good flush and clean with soapy water before first use also.