Thanks for your time and advice. Very helpful. I went and opened a nano cartridge and I see now what you mean about it being a stamp. So that’s not much of a difference between pressing it in with your hands. Ya, I doubt that’ll be something I do much too. I’m realizing the more I read that the medical MN once a month is the way to go. I’m just like a kid with a new toy and I want to play as much as I can but less is best I see.LOL