How I do it:
Make 4 cuts for skinning. Belly, spine & sides. Peel it like a banana. No need to fight the whole hide at once.
Pull the hide down just below the shoulders.
Pull the front quarters off. There is no bone connection, just work under it. Whittle the backstraps off.
Work the plumbing loose and tie off with a string, then pull it through the pelvis.
Whack the spine with a sawzall and split the hips.
Wear good surgical gloves.
Don't ring the hocks before you make your long cuts down the hide. Just make a little cut to start your skinning hook. Keeps the skin tighter and you won't have to fight it.
Before you cut the spine, open up the body cavity and get the tenderloins...if you want them. I usually don't mess with them on smaller pigs.
The plumbing on boars is a little different. I pick n choose and usually only clean sows.
The more you do it, the easier it gets.