How to Handle Risk Issues in Kettlebells

C. Orin says he was still fairly strong when he first started doing kettlebells. He discovered that 28 kilo for him was a good weight to get a lot of volume. C. Yannick says there should be no bending back with kettlebells, right? Am I right? This is what you do with the barbell. And one of the reasons a lot of people like kettlebells is because of American football.