You're Being Taught the Wrong Way to Square the Clubface
Mike Granato and Shaun Webb from Athletic Motion Golf explain why the popular 'motorcycle move' often ruins swing plane and clubface control. They demonstrate how trying to bow the wrist too early leads to a laid-off position and provide drills using pool noodles and wrist trainers to sync the face with the lead forearm.
The 'motorcycle move' (excessive lead wrist bowing) can cause the club to get laid off and lead to steep, over-the-top downswings.
The clubhead should stay outside the 'Mendoza Line' (the crook of your trail elbow) during the backswing and transition.
The clubface should ideally match the angle of your lead forearm at the top of the swing for a square delivery.
A slightly cupped lead wrist at the top is acceptable and often better than forced flexion, depending on your grip strength.
Avoid 'manual' wrist manipulations; allow the mass of the club and your body's pivot to naturally influence wrist angles.