What we want and what we need are two different things. I use the Competition shell holders for most of my reloading. Each of my die sets I mark with the shell holder that limits my case resizing (FLS) to as close to .002" as I can get for the chamber of the rifle. In doing so, my brass is not worked any more than it has to be. Maybe it's just me, but regardless of what calibre I'm reloading for, I want the best load and performance I can get. I believe that these shellholders are just one part of that process.