With frequent flights, the pressure change during climb and descent leads to more ink reaching the feed and partly the cap. A remedy is provided either by upright storage with the nib up or by carefully dabbing the lamellas under the nib with a tissue after the flight in order to absorb excess ink. If the strong ink flow remains, the nib can be slightly bent, which permanently increases the ink flow. The paper quality also plays an essential role for the flow behaviour.