Nice variety of opinion. I've got both Lee Loaders and single stage presses.
If you're going to shoot light target loads in a 45 ACP revolver, I doubt you'll have a problem with "walking bullets" whatever the crimp. Those loads may not cycle in a 45 auto pistol. If you're loading hot enough to cycle a stiff spring auto, I'd worry a little more when shooting them in my revolver. Don't recall any one mentioning this factor. As some one said earlier in reloading, details matter.

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SWCA 3417 HF 642 NRA-TC