Timely thread - I was thinking about this the other day.
As I understand it, the Dillons have fewer stations than the Hornady, so if you want to seat and crimp pistol rounds in separate stations, you are outta luck?
Not at all, the expander ball in station 2 expands the case neck, and the charge is dropped thru the hollow expander, then you rotate to station three, seat the bullet, and when you rotate it to station 4, it crimps the case onto the bullet.
It's really got all you need, unless you want to rig up the trimmer to do rifle cases, but that's best done on a single stage press anyway.
