I size then tumble then seat the bullet. I don't crimp unless I am loading for a tube feed. Only 1 die change most of the time and that is while I am tumbling. But I load so much I can change a die in a couple seconds.

I have never really used a turret press. I have 2 Dillons. They ain't cheap.

One thing you need to do is setup "dummy" rounds to put in the die boxes. 1 empty case properly trimed to use to setup your trimmer. Write on the side of the case the length with a sharpie marker. AND one empty case with the bullet seated to your desired spec. No powder or primer. Write on the side of that case with a sharpie the length. Setup, trim one and check with your caliper.

You put the dummy case in the shell holder, throw the handle down and run the seater die down hand tight till it bottoms out. Seat one and check with your caliper.

Just makes things a lot faster.