The Dardas site has the following: "Do not flare the case mouths for cast bullet reloading - you will damage them by shaving the shanks of the bullets." The Dillon flares the case mouths in the second die. Is this a problem? The Dardas site also says never use the Lee Factory Crimp Die but I use that too as the walls of Federal cases are thicker than most and leave a bulge in the middle of the case at the end of the bullet. I don't have leading issues and accuracy seems good. I was thinking of using lead for 9mm and 40S&W but after reading the Dardas site, I am having second thoughts. Dardas says to use the Lyman dies but I don't see how they can work in the 550B as there is no powder die. Can anyone clear all this up for me?