You make some good points. I made the mistake of letting a batch of boolits sit around for 2-3 weeks before sizing once. The little Star was really tested but nothing broke. Another mistake I made was to attempt to lube the die with Kroil. I will never, ever try that again. Kroil is not a lubricant. The boolit got stuck hard and I had a dickens of a time getting it out.
I PC with Smoke’s powder and find it very slippery and additional lube usually isn’t necessary. If a powder coated batch is tight I also use commercial or home made lanolin/alcohol lube.