I bought a 6 lb prime rib on sale a few months back and held it frozen until my birthday, July 4th, then smoked it. It was very tender and the spices I used made it very tasty. My only complaint it that my piece was not from the chuck end, so it had very little of the spinalis on it. For the price I paid, I should have expected it, but it was still a bit disappointing. Maybe next time, I'll make the plunge and buy the entire prime rib instead of a piece of it. Over all, it was good and everyone enjoyed it.