Boomtube, you got its it's convenient. Having multiple turrets set up saves a ton of time a leads to more consistency. I simply swap turrets and I'm good to go, adjustments are RARELY necessary. I tork the turret screw same each time. I use both a Redding T7 and a Lyman T Mag. They both produce excellent ammo, I like the T7 better but have more calibers set up on the Lyman. Think of it this way. On one Turret I get a dedicated depriming die, (I deprime prior to tumbling) and three calibers set up or a prep turret with bullet puller. No screwing in dies, less time measuring and adjusting, no brainier. Agree that most any modern press will turn out accurate ammo, most are heavy duty quality built this is just a more efficient way to do it. As for priming have always found the Lee or RCBS tools to be much quicker and lend a feel for seating the primers, don't know why anyone would use the press other than shear economics these days.