Hmm giving bonus points for the short fat case design and shoulder and not acknowledging the superior gas handling of the venturified shoulder? Totally un Californian, may Ralph Waldo Miller rest in peace.
The double radius shoulder is fine, but it doesn't do better than a 30+ degree shoulder on a fat case as far as anyone can tell. It was a however a substantial improvement over the H&H shoulder which was the context in which it appeared. They seem to be equally good solutions to the problem, except for machining difficulty.
