Is yours protruding to the point you can take it out with your fingernails? Mine, I don't even need the tool to take it out & if I'm not careful it can fall out & I wouldn't know it was missing.Me too. IMHO for mouth to lung -- they are the best.
I also find my Kabuki's very easy to fill...now that the o rings have softened up with use. No need for even a paper towel as a gripper.
I do have to watch one of the "grub screw" pins on a 510 version as it seems to stick a bit to some connectors and protrude when removing the Kabuki.
My plan was to contact Zen today but had a horrendous meeting with my g*d & her therapist- didn't go well & I'm emotionally wiped out.