When I attended a course for chamois stalkers I was taught to hang the carcass by the head to let blood flow freely away from the thorax-abdomen cavity.
The logical consequence is to start skinng from the neck downwards.
Quite recently on a magazine I read just the opposite advice, i.e. to hang (and to start skinng) from the hind legs, claiming it is cleaner.
What is the opinion of the esteemed stalking colleagues?