If a lifetime of ball golf has taught me anything, there is no one-size-fits-all approach to athletic movements such as this. Even if there was, it would take one many years to find it articulated in a way that made sense to them. I've had certain "breakthroughs" and have been able to look back at professional lessons and see where they may have been trying to get that breakthrough advice across, and it just didn't make sense to me at the time, and thought "why didn't they just explain it like 'this'...?"