I learned that a cartridge is acceptable if you use it with DE technique and no pressure.
Had to use one because the TSA hates DE blades
What ?!
I hate TSA ....... wonder if they have ever actually found a weapon.
Anyway ... I’ve been on the hunt for an acceptable cartridge to use when traveling with carry-on only ..... what did you use? Best I’ve come up with so far is Gillette Guard (from India)