I've only used more than 1 CO2 cartridge, 1 time over the last 15 years. I did not feel or see a small wire on the inside of my tire and I flatted multiple times. I finally walked the last 2 miles home versus putting in another tube, so I am not concerned about needing a hand pump.
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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.