I have the LEM dual grind #8.
Did 165lbs of elk burger yesterday in under 3 hours from start to finish. #12 would be faster but it works fine and I like going slower to double check the cleanliness of the meat before feeding. I freeze in 7lb bags and then pre weight all suet per bag and go. It’s slick.
And my time included chamber vac sealing which is 45 sec + per bag. I’m pleased and would never go back to single grind.