Re: Prep Work
I don't take it nearly as far as some guys.
My "routine" with new brass is to cut the primer pocket with a uniformer, deburr the flash holes, resize, trim, & chamfer the case mouth.
I just haven't made it to the weighing, measuring & segregating stage myself. I don't own any tight-neck chambers, so I don't see a need to turn necks either.
No doubt this stuff helps, I just don't do it for my own loads.