[Bagger Lance]

Agree that they have best intentions in mind, and they do help many golfers find the right positions which helps a lot of students.
EdZ can probably give you a couple of drills that will help synchronize your motion. Sustaining lag is the key and if it doesn't translate from your lower body to your upper; to your arms, hands, clubshaft, and clubhead, no amount of hip effort will do the trick. In this case, it may be the right "position" on video, but powerless at impact. I know you have some familiarity with TGM terminology. Let's connect the dots...I'd love to jump in, but I'll let Ed and Yoda take over from here.