We butchered our four Cornish x this weekend. After the first one, the rest weren't too bad. My husband did the dastardly deed and the gutting. We read the butchering sticky and found it most helpful. The part I was dreading the most was the plucking, and it wasn't bad at all. I will warn beginners though. Wet, scalded feathers reek.
To stabilize the bird for the hatchet, we didn't use the cone, though we had first thought we would. We just took some twine and bound the birds up. Next year, we will make a sort of cuff with a velcro closure to wrap them in (That's his plan-I can't wait to see how he is going to get the chickens to put this outfit on lol!) We had an old backyard swing frame that we used to hang them while we bled them out. I won't say it was easy or pleasant, but it was not the traumatic experience I was expecting.
Next year, we plan to get 20-30. On butchering day, my true love is going to invite his brother over to help, and we will give him half a dozen birds for his freezer.