Typhoon
You must be a body focused swinger. Lol Club focused hand / arm swingers don’t think about syncing up. The body reacts and syncs up with the arms swinging the club.
When I played basketball or any other sport I never thought about syncing anything up. My body synced up with my hands and arms performing whatever task I was doing.
When you’re scooping poop, do you think about syncing up what your body should be doing or just letting your body react to what your hands and arms are doing with the shovel? Lol
For me the pushing down with the trail hand is an easy feel. And the feel of the top part of the club head beating the bottom of the club to the ball will help with shaft lean as well.
It’s all about what feels click with your brain and hopefully can replicate. Lol. Easier said than done as we know.