One of my favorite pens I own to date is a Levenger with a converter in it. I always use it at home for homework and notes and such and later end up putting it into my backpack into its own felt lined pocked designed for sunglasses. No matter how careful I am with the pen and backpack, the converter always pops out and makes a inky mess inside the pen. Obviously, the best route would be to get a piston filler but students can't afford Pelikans And I don't want a TWSBI Is there any fix to get the converter to stay in there better? Or am I just stuck making a mess?