In theory your correct. In practice I know this brass will continue to shoot well with the same neck bushing for the life of the brass. The life of the brass is actually longer than I typically keep it. I usually make up 100 cases for each new barrel and just retire them once the barrel is shot out, but theres nothing wrong with them. If I was to anneal this brass it would not shoot as well. I dont anneal it because I have tested it enough times to know that. If you find a combo that likes light neck tension, that will be a combo that will respond better to annealing. While annealing does keep the cases consistent it also softens the necks, in many cases that hurts accuracy far worse than a little inconsistency in the neck tension.