Pirate did the grinding for me. I have to stand on my small stool to reach the top of the grinder to drop the meat in. (STOP LAUGHIING!) He has experience in a professional kitchen and knows what he is doing. He mentioned that some stores and a lot of restaurants add MSG to their grinds.
So I did the cutting of the meat into chunks, he did the grinding and taste test, and now I get to weigh, wrap and do the cleanup. All the grinder pieces are now soaking in hot soapy water with bleach.
Pirate made himself a burger after it was all ground. Really juicy, better flavor. His review. Juice was running down his fingers.
I diced the pork fat real small and he added it to the beef chunks as they were being ground. It was well dispersed throughout the beef as it was being ground. So it is a nice mixture. It is a 20/80 % mixture. I will use it again.
I have found over the years of grinding, that the faster I have the KA turning and grinding, with the small plate, I get a great grind and mixture. No waste left inside the grinder. I am very happy with the results I got today.
Thanks everyone for your help. I now understand more of ground meat.