Good, I urge you to try it for yourself. It was a game changer and huge saver of components for me. It's also arguably the most misunderstood concept I've seen in shooting/reloading, so it's difficult to convey and have others with different experiences understand.
The simple process is pick a charge (I do a quick pressure ladder for safety with new combos), seat bullets to an arbitrary depth like .050" off lands, mag length, whatever, and shoot a 10 shot group at the same POI however you want. If it groups well enough, you're done. If it doesn't, swap powder or bullet and repeat until it does.
I hope you try it and find success!