Researcher, The Lachmiller de-primer/resizer is yet another option, it is spring loaded and really sets the base wad down hard and the collet gives it a kinda crimp too. I have used them for years, but it won't melt the wax as it is purely mechanical.
Had a friend's dad that had one of the electrical units, can't recall who made it. Never could tell that the heating element extended the case life even one extra reload, but my observation was a while ago and if my memory were all that good I'd remember who made the one he had.
Anyone out there with a definitive answer?
FWIW, I always thot the Winchester paper hulls had less wax in them .. they always seemed a lot more prone to swelling if they ever got wet or just degradation & deteriation if stored for any length of time waiting to be reloaded. Federal papers never exhibited that trait.
I still load some of those multi stack card, felt, cork wad columns and some of the Ljutic Mono-wads as well. The latter when loaded in a AA case, old or new will stretch it at the mouth like you wouldn't believe. One reload with a Mono-wad in a plastic case and discard it. The case brand makes no dif, does the same thing with any plastic hull. Anyone that questions their ability to obturate in the hull need not fear, but behind a long forcing cone or overbored bbl. its bloopers. Old short forcing cones and tight bores, never a problem.