Steve, why got to the expense of the ruger rings when they are sooooooo heavy?
Four less screws to come loose. No mounting base. Because you can pull the scope/rings off without tools. (quarter or knife blade) I could probably settle for a standard weaver groove setup, but I like the ruger tab/friction lock. It's damn strong/solid.
My mountain rifle would also have iron sights. Schtuff happens. If I and the rifle took a tumble and bent the scope, I'd hate to have a ruined hunt because the sighting system is shot. Just a flip down buck horn in the rear and a ramp at the front sighted for 150yds.
-Steve