@Jonathon That’s how I do it!
@Jonathon Top Round Beef is what I’m using for meat block.
If you want 20% fat (in that range is what you are looking for) then it would be 5 lb of fat for 25 lb of meat. Now, most meat you start with is going to be in the 20% range anyway unless you are suing deer or another low fat ungulate. What is your initial meat block?
Fat is included in what is added up to 25, so if you did 25 plus 2 lb of pork fat that is now 27 lb and you would have to use more than a full bag of seasoning.
No apologies necessary, getting things right is always worth and extra question or two!