The auto indexing is an improvement for me. I can keep the right hand on the handle and the left hand is free for the brass, bullets and priming (using the safety primer). The indexing can be easily disabled for die setup which is a nice option with the Lee press. With components organized near the press, the run rate is improved over manually indexing the turret. However I am not a speed demon and I always pause to peek at the powder level. - Phil