Well, you nailed the two big Dillon hickeys right there. I've had to tune and retune my RL450 priming system (files, lube, cuss words), but they work well now, as long as I watch carefully, which is not bad practice when loading anyway.
The Redding powder measure also works well. It's hand-thrown, but accurate. I don't have time-motion numbers, but my impression is that overall production rates did not suffer very much, because of fewer stoppages and goofs.
Mark
It occurred to me to mention that I've installed a mini spot lamp that illuminates the mouth of the just-charged case. I visually confirm the powder charge before putting the slug in place.