The honest truth is most folks who work in meat markets have never BBQ'd a single piece of meat. Their prime objective is to push whatever the manager ordered.
The manager tries to maximize profit by purchasing the least expensive cuts of meat and selling them for the most they think the suckers walking in the door will pay.
It's ugly, but that's the way it is.
When you ask for a beef clod, and get that "deer in the headlight" look, step back quickly, and never return.
I started quoting cut numbers to the local grocer, and he did NOT HAVE A CLUE. I've given up, till someone understands what I'm talking about.
Tri tips are another good example, cutters will cut a sirloin roast in the shape of a triangle and try to pass it off as tri tip, then price it @ $8.00/lb for an ungraded hunk of sirloin roast. WTF?