I have a 650 and yes it has the low primer buzzer. I misspoke, my problem is getting it set up. I haven't found an efficient way to do it yet because I haven't used it enough yet and not at all since I moved.

How do you adjust the powder measure. When starting out I was doing it by running one cartridge through it and at the station where the powder check is taking the cartridge out and measuring the amount of powder dropped, then adjusting the measure, and feeding the cartridge back through until the measure was throwing the right volume. Then you have to make sure the measure doesn't drop any powder until the first cartridge gets there.