I've been visiting websites that sell the Kral Puncher Silent Marine to read the reviews which are mostly positive but a fair number of users/reviewers have complained about the orings being damaged on the fill probe after insertion into the fill port on Kral airguns and their guns not being filled up because of damaged orings. I just ordered a .22 synthetic Kral PSM from Pyramyd Air on 9/1 so I don't have any experience with it yet but I'm wondering if this is something I should be concerned about? With my Stormrider I put a little oil on the orings before inserting the probe to fill my gun and I'll follow this procedure with the Kral. Most of the complaints were from owners of the Mark I Kral PSM. Did Kral make a mark II and if they did how can I tell which one I have? Nothing in the Pyramyd Air description suggests a mark I or mark II model.