I have had the worst luck when it comes to Eyedropper pens. They always burp and leak on me, really badly. I had hoped that the 66 Stabilis I ordered wouldn't have had the same issues, seeing the nib unit was a screw in type of one piece. Sadly this was not to be, but I would like to get other peoples' experiences just in case I'm doing something wrong or there is an actual fault with the nib unit.
I have the pen eyedroppered and filled with Sailor ink. I followed the instructions on the Franklin Christoph website about greasing the threads of the nib unit and the thread of the barrel. I turn the pen nib up and warm it thoroughly in my hand before use. To write one side of an A4 page I have to blot away the burps and leaks at least eight times on a mound of tissue paper while constantly turning the pen up to check it isn't about to make a huge mess on the page. After an A4 page half of the ink contents of the barrel are gone; just to give you an idea of how much ink the pen is expelling. When it first started to do it I thought I mustn't have greased the threads on the nib unit enough and ink was escaping and creeping down between the unit and the section, but it isn't. The ink is actually expelling out the bottom of the unit itself at the point where the feed meets the end of the unit. Is this a fault?