Hi there, I own Pilot Custom Maple Wood Fountain Pen and except for its screw-on cap, overall, I am very much satisfied with this fountain pen. The removal movement of the screw-on cap seems to be causing an ink spill inside the cap. Yes, even though the pen has a screw-on cap, sometimes, just unscrewing the cap is not enough to remove the cap. I would still need to snap the cap off from the barrel to in order to uncap the pen which, I guess, creating a vacuum and causing it to suck the ink out of the pen, resulting in a huge ink spill. Recently, I had chance to visit Fountain Pen Hospital in NYC. I had the pen with me and explained the issue to the owner. However, the problem didn’t occur for that time, Murphy Rules*, so probably he just assumed the cap wasn’t turning smoothly then applied silicone grease on the threads, yet it didn’t fix the problem. The cap seems to be faulty but I can’t really be sure because the problem doesn’t occur every time. Specifically, it doesn’t occur when it is fully inked or un-inked. Do you guys also experience similar problems with this pen? Any suggestions?