I like to separate the seating and crimping process with pistol ammo (I rarely reload any rifle ammo). From my experience, it's easier to set up. Sure there are some who say that setup without a FC die is super easy and only takes 10or 20 steps to adjust (I exaggerate) and you don't have to pull the handle an extra time, yada yada. Been covered on this forum exhaustively. My preference is to use the FC dies for both roll and taper crimping, depending on the ammo. I haven't always done so, but it has been my preference for quite a while now.
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