Used my mini for a number of years, have 5 sets of tubes, on a 650. Worked well for the longest time - several years, then a few tubes didn't work as well as they used to. I attribute it to temp changes in my garage as I stored them there with the press and hot summers and cold winters apparently took a toll on how well some of them rotated or dropped rounds. All in all became one more thing I had to pay attention to as I had to count rounds to be sure to turn the tube to the next set of rounds. Look up, look down, look left, look right.
So I stopped using it, kept the funnel in place in the powder die and just load by hand. Almost as fast, really haven't lost any time to it. Money I could have put back and put towards the adult version....