Well folks, they say you get what you pay for. I took the chopped up pork butt directly from the fridge and started to grind through the medium plate and almost right away it got stopped up and wouldn't budge an inch. I double checked to make sure I had everything hooked up correctly and it was so I cleaned the grinder out and tried for a second time with the coarse plate. Unfortunately, I got the same result. For whatever reason the feed screw would not grab the meat and pull it through. The meat was nice and cold so I know it wasn't a creamy fat issue.
I had to borrow my mother's Kitchen Aid with grinder attachment to do the job and it worked like a champ. I just wish they made a fine grinding plate for the Kitchen Aid, but as of right now they don't. Anyway, I'm gonna freeze what I grinded today and go ahead and order a 5 pound sausage stuffer. While I didn't try the stuffer attachment, I could see what a pain it would be over using a real stuffer. As for now I'm gonna return the grinder for a refund and hang onto the Kitchen Aid for the time being. I may have lost this battle, but the sausage war will continue!