Started with RCBS Junior in 1972. Still have it and use it if I am working up loads at the bench on shooting range. Then came the Rock Chucker. Excellent gear. Then came the Dillon 450 and finally the Redding Turret. A beast of a press. I use the Redding the most now and the Rock Chucker the least for the ability to set up dies and forget. Mostly rifle stuff. I like the Dillon No B.S. guarantee. I wore the 450 out loading for pistol competition and after 25 years of use they rebuilt it for . . you guessed FREE! The 550 is the new and improved version of the 450 with interchangable head for dies. The Rock Chucker is excellent press as well. I am no fan of electronice scales. I stick with the beam scales practicing K.I.S.S. Electronic scales can get messed up without warning. A beam scale rarely does. I use a specific bullet to check calibration every now and then.