In addition, every fifteen rounds or so, I'll pull the powder filled case and weigh the powder on the scale and then pour it back in the case, replace the case in it's slot in the rotation, and then continue to load. Slows down the process, but I'm not in a race. (My Dillon Scale died after about fifteen years of use. I knew it was WAY out of warranty... but I called Dillon to see if they could repair it. They said no, but they would sell me a replacement at Cost.)
I take my time, insure all the settings are correct, and load in a small isolated location so it's quiet and I'm not interrupted. I don't take calls, Miss T takes a message.

Every round gets checked with a go/no go gauge.
I don't share reloads with anyone else. Not worth the risk.