Not saying everyone does it bad but I've seen more meat rotting in the mountains using the guttless method than anything.
Ran on two bulls last year, guys backed up to them, left all of the flanks, all of the neck, both tenderloins and did a half a__ed job of getting the backstrap, left better than 40 lbs of meat. We see this multiple times a year. We get 95% of our elk out whole and 100% of the deer. It's a significant investment in gear and labor to do but hunting success for me is by the pound! I'll pass an animal if I don't have a clear retrieval whole.
I hock them then hang game on the RH side since I cut right handed. One cut up with the hair and pull the top leg down, then bottom leg, pull down to front legs, cut from elbow out the front and pull the rest of, sever at the base of the head.
I have had to bone out a few but it's done like a beef, from the belly skinning around from one side then taking that meat, rolling the carcass over onto the hide remove the other half.
I used to skin with two one ton three phase winches with a floor roller, average a deer a minute with that system, we allowed skinners 4 hairs that we're generated by skinning.