Most of us have already commented that on a packer,done is when it is done.
There is a very wide range of Choice.
When Jimmy Carter decided to help the farmer and trick the public,he moved a lot of select up into the choice grade.
I'm no expert,but have cooked a few -of every kind.
If your packer comes done at a correct 190*,you have gotten one up in that 2-3 %, right by prime.
Let us know if you can cut 1/4 inch slices with a fork,and I'll want the name of your seller.
Let us know.