It's clear after several years that the #1 must have is being stacked over the ball at the top, not kind of stacked, but STACKED. The reason is because without that, I don't have a reliable fixed point of reference to work from to fix any other issues. If I stack one time, then kind of stack, then do a slight shift and lift next, then start getting on my trail side at address, I have no reference point from which to fix anything. Too many moving parts. If stacked, and I hit odd shots, then at least I've got a good foundation for which to discover the flaw. For me that's most likely a lack of lower body engagement on the downswing.
Stacking is also my main focus on the course. Stack, stack, and more stack, because in reality if I'm stacked over the ball, a LOT of other problems are automatically fixed.
Here is a timely YT release from my friend and S&T colleague Rob Cheney on the topic of weight vs. pressure.
Sorry, but I'm going to take a pass on the invitation to view this or debate angles of attack. There is certainly built-in leeway within the S&T system for a temporary transfer of pressure into the trail side as long as the swing center and low point don't drift rearward as a result. Have a look at Grant Waite's swing, for example. However, this is not necessary as I've personally experienced dramatic improvements in driver distance and accuracy since "going forward", and has been proven time and again by members and students.
Andy Plummer is the most intelligent individual I know in the realm of golf instruction. He's got the data and he understands the science. In Andy I trust.....😎
Having said that, again feel free to use the leeway as you see fit, and as always let YOUR ball striking and shot shape be YOUR guide!
Thanks @GolfLivesMatter . I found it very important also to stack over the 'arbitrary low point' of your driver swing. I still tend to lung at the ball and thus come in steep. For me anyway the key is to keep everything behind the ball. Not sure I'm ready for the video you attached!!!. Looks like I might hurt myself. That dude is jumping out of his shoes. :)
For me it's stacking, left shoulder down, and start downswing with left hip towards the target. If I don't do that last step, I usually come over the top and chop down. I used to be a 'single plane academy' guy, and found Tom about a month ago. Already hitting much more flush (when I don't let my old habits creep in) Toughest part is with the driver, I can get lazy and come over the top, but when I do things correctly, I hit the driver better than I ever have.