I honestly had no idea what I was doing in the beginning. All I knew at the time was that I needed to get the fat off so I can get a nice piece of meat to make my stuffed pork loin.
I started off by cutting a piece off the end just to see how thick the fat was. Also, I didn't want to cook the entire piece of meat so I wanted to make some pork chops out of it and freeze them.
After determining where the fat was, I cut a slit from the starting point then pulled it open with my fingers. It's easier without a knife because you'll be pulling it open through the tissues in the fat and you won't slice into the meat. It opened up like a book and took no effort at all.
I noticed that there were strips of meat attached on the fat. Not enough to be a nice cut of meat but too good to be thrown out. So I cut out the extremely fatty parts and saved the rest to make ground pork.
Chop those into small chunks and put them into a food processor. Pause it 1 second at a time until it's evenly ground up.
I used a bit of the meat for stuffing the pork loin, and the rest I put into the fridge for future use.
Then I cut off a few more pieces of pork chop from the loin and froze them.
This way I could make a smaller portion of stuffed pork loin so I don't have to be eating left overs for the rest of the week.
There was no skill involved really... I kinda just decided what I was gonna do as I went. It did take a bit of time but it was so much fun. Now I can tell people I semi-butchered a piece of meat :)