Someone posted in a thread that a counter sink works well for swaging primer pockets,
Semantics, but I would never call using a cutting device a way of "swaging" a crimped primer pocket.
Maybe I have way more to do than most, but I wouldn't ever consider using anything but a swage tool for crimped or "tight" primer pockets (like S&B). I much prefer to reform rather that just cut the ridge from the crimp. YMMV