I load a lot of handgun ammo and don't take the time to case gage every round; accordingly, I've found the Lee FCD to be an excellent part of my reloading routine. Besides the post-sizing feature, I like the ease of changing the crimp by just adjusting a knob, as opposed to raising or lowering the die, per most designs.
Loading bottleneck handgun ammo is a science unto itself. I wouldn't approach it with a cavalier attitude!