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I just don't see the amount of worry over crimp or trimming.
Short the cases to form them to your chamber and THEN worry about trimming to consistent length.
I played that game and none of my rifles, including sub-MOA rifles showed any improvement.
Now, if you shooting 0.5MOA or smaller, you "might" see some improvement from a consistent case length and crimp (if you even crimp your bullets).
But FIRST, fire-form them to your gun, then worry about case prep tricks.
Never trim new brass unless there is some defect to remove like huge fin burrs peened on the edge of the mouth by tumbling at the factory.
I normally round up the case mouths with an expander ball before I load it.
Shoot it and it will shorten when it expands. Then size it carefully and it will get longer. But not every case will shorten and lengthen the same. Trim only over length cases and shoot again. On the second reloading you might measure all the cases and see if you need to trim all of them.
Most of the time the chamber will be .015 or more longer than the brass so trimming may not get you much other than more consistent crimps.