I started with progressive presses about 3 years ago, stupid to wait this long. The first one is an RCBS; better than a single stage but sensitive to settings and dirt ( after 3 or 400 rounds, expect problems until cleaned ). The primer feed is kind of chicken s*** too. Bought a Square B about four months ago, best thing going since smokeless powder! If I can con my brother into buying the RCBS, I will get another Dillon.