I bought a box of 12 CO2 cartridges about 6 years ago and I had to use a couple in the last few months for people that did not have anything to fix a flat. I had no issues with the cartridges. I've had the same Genuine Innovation inflator for over 10 years and it will use either threaded or non threaded cartridges and I flip it upside down until I need it then just put it in the sleeve and screw the head on. The sleeve even has a hole in the bottom for the top of the cartridge to stick through. Even though I am tubeless now, I still carry it just in case.
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Brian | 2023 Trek Domane SLR 7 AXS | 2023 Trek CheckPoint SL 7 AXS | 2016 Trek Emonda ALR | 2022 Trek FX Sport 5
you should learn to embrace change, and mock it's failings every step of the way.