I like my post #2 in the Quote above. The typical student errors are the same today as they were then.
The only clarification I would make has to do with the missing "right arm thrust". I had just referenced the typical lack of Pivot (which drives a Swinging Motion). Therefore, the only remaining Drive for the Left Arm and Clubshaft (Primary Lever Assembly) is the right arm.
I was not advocating a Hitting Stroke with the Taly. As in all Strokes, to Hit or Swing is always the player's option.