The only time I had trouble was a turkey that I had on the ground and he tried to move when I stepped too hard on his tied feet when I leaned forward. He moved forward a bit and I didn't catch his neck at the back of the curve but the front of the curve... still did the job in one stroke
if you can find them and they seem to have been only a few imported so a limited gene pool .. some people have given up on them http://sunbirdfarms.com/2015/01/lessons-american-bresse-two-years/