Like the hobbit and lord of the rings, and while one can argue that the both book series are intertwined, they share only the world and certain key elements that are important to the story in lord of the rings, there are much more important things than the ring in the hobbit. And there are much more important things going…
another method that works if the edge rings are of equal width is to ctrl + middle mouse on add edge loop to bisect the edge rings 50%, then bevel components on this new loop to pinch/slide them as needed. though with non uniform width edge ring this will give poor results because the pinch is % based.