Here's how I do it....I use either 100% beef, or a 50/50 pork/beef. I think I prefer the 50/50 myself. If I use all beef, I use the 80/20 I get from Sams Club, if using 50/50, I will use the 90/10 beef, and ground pork butt will give about the right fat content. I have always used the Leggs...