Like many of you, I recently purchased a superb K&M matchcase via Schwert. the stopper on mine appeared very tight so I lubricated it,civil engineer style, by smearing a little washing up liquid on the 'o' ring.
It works much more smoothly now.
Mods,
sorry about the title. It could have been worse
It works much more smoothly now.
Mods,
sorry about the title. It could have been worse