Yeah stop trying to confuse yourself, you've been told what you need to do. The information shared is valuable and coming from some of the best instructors in the world. No "tweaking" is involved, work on making the priority piece better and you'll improve. If you focus on anything not related to Keys #1 and #2 you're setting yourself up for failure.
Agree 100% with this. Playing years of golf were you are constantly striving for contact, it is a bit strange doing drills that might not result in the best contact. Believe me, some of the best results with practicing the drills would result in the worst contact. It sounds counter to what most think, but its true. I wouldn't believe it unless shown to me with a video camera. Then I was like, "Yep, shitty contact, but great club position".
Trust these two guys, Mike and Erik are very good at what they do.