Once you verify that everything is set up correctly, take a Sharpie and put witness marks on the sockets, lock rings, dies, and adjustment knobs.
“There is no growth in the comfort zone.”--Jocko Willink
"You can never have too many knives." --Joe Ambercrombie
I noticed the redding competition sizer die does a slightly better job of removing glock buldge from 9mm. The cost is your shoulder bc it's alot more work. As a result I went back to a dillon sizer to go along with the redding micrometer seater and micrometer crimper. I literally can't remember a round that didn't chamber in my glocks with this setup(30k+). Can't speak highly enough of redding dies.
I agree that Redding dies are excellent. When discussing dies in general, a safe generalization is that there is much variation among and between brands. Sometimes when having issues, using a different die will resolve the problem. In such instances, the original was not defective. It simply did not work well for your firearm.