I was about fed up with most treated, or untreated, brands of media before I found Lyman's rouge variation--think they call it "tufnut" or somethin' like that
IMO, ths product removes crud and shines faster. But, more to your point, the film actually aids in reloading. With it there is no need for case lubrication. In and out of the dies with lessened friction.
For comparison, I tumble pretty large pistol cases in a Thumler Rotating for about 4-6 hours.
Diluting the rouge by cutting with non-treated is a great cost cutting idea. You can buy media on the cheap through Harbor Freight, if interested