I thought the old rule was not at all vague, and not at all ill-advised. The new rule, which I recognize is a work in progress does need some more work, to make it more clear as to what is actually to be allowed. I don't see that as being a problem.
But, I thought the old rule worked fine too, and if you wanted to have medallions of money muscle, well, you had to cook at least two butts.
I'm feeling bearish, and I'm packing a Wusthof Grand Brisket slicer from MABA
"perhaps...but then again...maybe not..."