re: just struck out on first Prime Rib. What happened?

Wow, never heard of that way to cook these. The way I find is best and easy is
Salt them 2 days before and let sit on a rack, then pepper them and into a 225 degree
Oven until 122 degrees on a temp probe. Take out until 30 min before you serve put it back in 450 degree oven for 5 mins to crust the top a little.
I like to put root vegetables w a little of the drippings in the roasting pan while the meats sits and roast them then put the beef rack and all over these during the last 5 min at 450.

Beef will be med rare from edge to edge., medium on the end caps. I do Bone in.