X2, I'd cut around the milk sac as well, I too split the brisket & pelvic bone for easy removal of entrails. Then all that's left is butchering in the garage,it's sooo easy!
X3
I leave the arse attached until the very last thing. Open the carcass from the throat back, working around or removing the udder, and splitting the pelvis bone. Cut around the diaphragm. Grab the windpipe, and roll the whole works out the back, and cut the arse out and trim off the urinary tract, last.
I like to place the animal head uphill, on it's back, if I can, so most of the blood runs out and does not soak into the hair.
Nothing wrong with the milk, just that it's not deer meat, and it can get a little crusty when it dries!
Good video though! Really wish I had it when I shot my first deer!
Good technique, if a little slow the way he does it, of avoiding having more loose hairs around than needs to be, by cutting from the inside outwards. I wish I had known that before I started, too.
Cheers
Trev