Heven't done a prime rib in a cookshack yet, but from accounts on this forum, they are pretty darn good. I wanted to add a note about the shoulder clod.
A few months back, our restaurant recieved a case of IBP meat labeled shoulder clod. The truck arrived during our lunch rush (ARGGGG!!!), so all my staff did was check to make sure the weight on the invoice was correct, and that the meat was below 39 degrees. They did not check to make sure it was the proper cut of brisket we normally use. Since I do not usually personally check our deliveries in, I did not catch the error until about 5 days later. I informed my sales rep, who quickly assurred me that he would take care of it. Well, he did, sort of. He put off returning the case long enough that I was unable to return it through normal channels. Cryopacked beef can go about 30 days from the pack date, and after that, no good; a freeze or use before sort of deal.
I wasn't about to serve my guests meat that was nearing that aging limit, nor was I going to try something new on someone besides myself. My sales rep came through in the form of discounts on other products we buy from him, so I basically had a free case of meat for my own personal use.
I cut into a cryopack and found that rather than the larger cut the meat appeared to be, it was actually cut into roughly 2.5" diameter strips or cuts. They were about the size of a one of those Hormel pork tnederloins you buy at the grocery store. Maybe a little smaller.
Anyway, I decided to cook a few up for our regular poker game that night. Never having cooked this cut before, and pressed for time, I figured I'd smoke it to mid-rare or mid. I gave the cuts a little dry rub, smoked them for a while, pulled them at about 155 degrees, sliced them thin, and damn, they were good. I was worried about pulling any meat that is labeled as an alternative to brisket at such a low temp, but it was very tender and flavorful.
I later learned that the food distributors are trying to market this cut as a low cost alternative to beef tenderloin. While not nearly as tender as t-loin, this was still pretty darn tender.
To conclude my clod story, the meat that I did not smoke in that initial batch I packed and froze. Last week I defrosted a bag and cooked it low and slow for pulling. I was wanting to make shredded beef tacos and burritos, and this particular cut took to that nicely also. Still plently moist after cooking to 185 degrees.
While it still bothers me that this cut of meat can be so versatile, who knows?! Maybe it actually is. I'm a cynic. Plus, go try to ask your butcher for a sliced down clod cut, you may have a tough time.
In closing though, if you get your hands on this cut, play with it, it's been good to me so far!