Me for 9mm only.... I said my cases get stuck on the powder fill flare down stroke . He told me that's because you need to clean your brass for about 45 min so the soot stays in the case.
That's 45 minutes in a dry tumbler. He's basically saying he doesn't subscribe to wet tumbling, extended dry tumbling, or any other method that gets the inside of the cases sparkling clean. While there's a lot of truth to the carbon on the inside of the case being a lubricant, it simply doesn't allow for other case cleaning options.
If you do get the cases clean inside and out, then you need a tiny bit of lubricant on the inside of
some cases to lubricate the Expander. The various sprays, both factory-made and home brewed, are the easiest ways to make that possible. Otherwise you're left manually dabbing case lubricants, like
Imperial, straight onto the Expander.
In a lot of ways, this sort of sums up the Dillon way of thinking. I get the feeling that for them it's still 1985, people are mainly loading lubed lead bullets, which only come in 2 shapes, they are dry tumbling their brass, manually transferring their dead primers to the trash can at the end of every loading session, Ronald Reagan is still president, communism is defeated, and all is well with the world.