Well...the sirlon tip was awesome. This cut was so much better(and much cheaper) than any prime rib I've ever had. I did a 24 hr marinade with garlic, onion, Allegro (original) with a 1/4 cup diced green chiles and a little EVOO also basted with this mix. I used smoked sea salt flakes with peppercorn and a dash of basil for a rub with a horseradish dip. Took it off at 137* and foiled for 30 min. Served with fan cut potatoes basted with EVOO, butter, onions in a dutch oven. Wife and kids loved it, no leftovers! I will be making this again soon.