Good stuff. I use both. Best advice I can give is don’t try to learn on a progressive. The best way to find out what works and what doesn’t is to use a single stage for small batches. It allowed me to find what the best amount of sizing, belling, seating and taper/roll crimp to use in all my handguns.
After that setting up in a progressive and getting it to run properly is much easier. Start slow to get used to it and find a rhythm. Use of a powder check die is a must. Also have found that when using flake powders such as Unique I get a more consistent powder drop when a baffle is used in the powder measure especially a uni-flow.
