Sorry, I just don't see the special need for the Lee crimp die. I didn't say I didn't crimp my pistol rounds, I have a separate crimp die for all my pistol calibers. I also don't have any problem producing quality ammo without using the Lee die, and I know tons of other people that have the same good luck without the Lee die.
IMO, doing what amounts to sizing the brass twice is overkill, and can only shorten the life of the brass from overwork. Since I've never had the need to do this, it seems like a useless step for me.