Process at night? No, catch them at night and process in the morning. Chasing chickens is for the birds.
I'm a big advocate of doing our own thing and of discussing each or our own methods. That's how we improve and evolve our methods over time. By the tone of your posting I believe you are offended. That was not my intention.
Again, I suggest the efficacy of the knife is enhanced or diminished by skill and skill can't be taught on Youtube. Blowing the chicken's head clean off requires less skill but offers additional liabilities.