I had a lot of trouble with Lucky Orange in multiple pens with flow (1914 Heritage F, 149 EF, 149 F, 149 B 146 BB all showed the same symptoms). The ink dries up in the nib quite quickly. In some cases I found that it would dry up after 30 seconds without use! To fix this, after filling I inverted the pen, twisted the piston half a turn or so towards empty, added One to Two drips of water into the feed, and pulled the watered down ink back in with the piston. The color is close to the same as it was originally, but it now will no longer clog the nib
It also took me a LONG time to clean the piston fully of Lucky Orange. I was doing the fill with warm water, wait, flush and repeat process for around an hour before the water was clear again.
Thus, I named it unlucky orange and don't use it very often anymore even though it is a stellar color.
Best of luck with yours, and Lucky looks to and sounds like he was a best friend in the best way
Edited by grantmm, 25 June 2017 - 15:58.