I really prefer to use a razor knife or scalpel and cut the arteries in the neck. bird is unconscious within seconds and the heat keeps beating pumping the remaining blood out of the bodyHere is a safe way...
Get two framing nails and drive them into a stump (or something similar) only about an inch or so, leaving 2.5 - 3" sticking up. Drive them about an inch and a half apart. Then you grab your rooster, pull his wing primaries down to his feet so that you can hold his legs and both wings at the same time. Put his neck between those two nails and straighten him out, putting tension on his neck to keep it straight and held still by the two nails. Then... make sure you have a sharp cleaver... its easier than an axe.