I have 175 cases that have been fired once. I am looking to turn the necks on them now for better concentricity and even seating pressure. I have a regular Lee full length die, Redding type S full length bushing die, and a regular Redding neck die with expander (no bushings). My question is which die should I run the brass through before running the brass up on the k&n expander mandrel. I was thinking I should use the regular Redding neck die before the expander so that after I turn the necks I can run them back through the type s die with the correct bushing and bump the shoulders then. Would this be the best way?