If you have a good temp probe, Prime Rib Roast is a pretty simple straight forward type of cook. I have done cooks with the bone and boneless. I really like the boneless, because it allows for rub and bark on the whole roast. A third way is to have your butcher carve the bones from the roast and then tie them back on. This way you now have a great roast and a few bones chew on as well. The issue with this plan is you need at least two bones worth of roast to get the best effect. But as mentioned earlier, so many things you can do with left over Prime Rib.
For my cooks I usually rub the roast with Montreal Steak Seasoning (simple SPG works very well too). I put on the pit at 225* and pull when the roast hits 130*. While the roast sits it will get to the perfect 135* medium rare we like. If you like yours more done, keep on pit through desired temp.
I really like most everything I have done off my pellet cooker, but the PR has always been at the top. Good smoke flavor and not over powering the meat. I thought I had a post on here for PR, but I thought wrong. I believe Ross77 has one in the How I cook Beef.
Here is a pic of a finished roast. I think this was a three/four bone cooked boneless. Give the PR a try, easy cook and oooohhh so good!
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