Consider the Forster Precision Bushing Bump Die. Sizes the neck pushes the shoulder back and doesn't mess with the body. Throw in a "body size" die after 3 or 4 firings or when the case starts getting snug on closing the bolt. You end up not oversizing the brass anymore than needed. Less trimming because the brass doesn't grow like full length resizing all the time. Longer brass life that way.
I've got BR brass that's been resized with the bump dies and hasn't needed trimming in over 25+ firings and still going strong.
As far as runout? Never checked. The bullets are all going in the same hole so why bother.
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