Good looking out on that squib.
I'm a newish loader as well, also doing 9mm and on a turret press.
To minimize mistakes (especially due to distraction) I use it more like a single stage that I don't have to swap dies on.
Everything gets done in stages. I.e. - decide how many I want to load and them decap/size all, then prime all, then expand all, and finally charge and seat.
It's slower, yes, but thus far have had no issues or skipped steps
"The best diplomat I know is a fully charged phaser bank" - Montgomery Scott