To answer your question about the Lyman not being reliable, when I first got that trimmer, I set up "jig casings" in each caliber to set the trimmer blade. But after a few months (and heres where the reliablity issue came in) after setting and locking the trimmer, after trimming about 15 casings the lengths started changing. I mean they were off by as much as .010 - .020. That did not make me happy. I checked to see to make sure everything was tightened down and as it just as I'd set it except for the variance the casings now showed. After learning to recheck casings after the first 15 and again finding a variance in various caliber casings, I gave up and bought me a new Redding 2400. I've not had a problem since.
I've seen postings by others on this blog who complained about the same issue. Some had to do some custom work on their Lyman Universal trimmer and even change center shafts/lock rings, etc. Because I like precision and on the advice of some Benchrest and long distances shooters I know, I decided on the Redding 2400.
Maybe one of these days I'll get around to messin around again with the Lyman. Got a few younger guys around here that are thinking about getting into reloading so I figured when they're ready, I'll get that darn thing fixed (even if I have to ship it back to Lyman) and donate it to their new cause and education. Sorry Bud, you've got enough toys.