I keep flip flopping back and forth trying to decide between the 4 hole turret kit and the 50th Anniversary kit. Right now it's the turret. I plan to use it single stage at first.I just started reloading, and I have the Lee 50th Anniversary kit. It's single stage, and is super-simple to use, quick to change out the dies, and easy to set up. I've never used a turret press, but for my $.02, go with the basics at first.How many times do you have to use 9mm brass before you have to trim? I plan on using minimum loads at the beginning. Just wondering if a case length guage is in order also.