Understood .... But back to the "strong wrist".yes...Supination is after/at launch
What I mean by strong wrist is do not let the wrist supinate...lay the bat downUnderstood .... But back to the "strong wrist".
You advocate a "strong wrist" beginning at "swing launch" .... how far into the swing do you advocate the top hand wrist remaining strong? By 'strong', what do you mean ... do you mean that the top hand wrist is stiff and in alignment with the rear forearm?
That depends on how you teach and understand the concept of 'swing down'.I do not teach to swing down on the ball...Down as in chopping down