Love that BEAR Head for a hat. I always ponder on where you got that picture from every time you post.
Not everyone follows what someone puts on UTube. I have been reading books, post, blogs from the top shooters in the world (55 + years). It seems that all of them have their way of doing every process from Break in, Cleaning, Trimming, Sizing, Priming, Case Prep, Seating, Annealing, and ON & ON.
If I listened to all of them -( WHICH I do for their knowledge and different perspectives)-you would never get a load to shoot. BUT if you take the best ideas - that works for you and incorporate into your reload practices - you may be shooting BUGGERS.
Remember not all bullets work in every rifle and not all reloading practices work for either. Pick a practice that works for you and keep it "CONSISTANT". Do it the same way all the time. That's where you will get the best results.