I asked a question like this and some replied that I wouldn't get much of an answer, but I think that's wrong. I think most people here agree on what is absolute. They just don't always agree on how to perform/achieve those absolutes.
For example, turning the barrel is an absolute for a high-level swing, but people here often disagree on how the barrel gets turned. I'm still not sure who I side with on that, but I do know to ignore any videos that advocate for a "push" swing instead of turning the barrel.
I for one think of the hands as a rotational point. You set up a deep rotational point through the back leg/hip. Hit from the back leg.
Do you agree with my overall point, both generally (the what vs. how) and specifically with turning the barrel?