Thanks for the advice guys!

I think I'm going to start using corn cob/walnut for my case cleaning media with no manufacture additives.  Some folks said they add mineral spirits and used dryer softening sheets to keep the dust down.  Other people, like Kerz, use a little added polish to brighten things up.

One interesting source said that the rouge, used in the Layman Tufnut media, may cause undue wear of the rifle bore!  Supposedly caused by the amount of polish that remains on the inside of the case when reloading and then shot through the barrel.  Besides the added mess of the Tufnut I think I'm going to shelve it for now.

Kind of off topic, but am I correct in assuming that most folks use a single stage press to load their 30-40 ammo?  I thought I could use my progressive press... pull down the handle a couple of times... out pops a bullet.  But I'm guessing that a single stage would inherently produce more accurate rounds?

BTW: Interesting comment from one source suggested that they had problems with cases sticking in the dies because the cases were too smooth and shiny.  The commentators thought that perhaps the carbon, on the outside of their pistol cases, acted as a lubricant.  I think maybe they forgot to use lube or carbide dies? :-?