1) The hands are in the right place (not behind the back elbow)
2) The rear forearm is flat
3) The bat is pointed up and the bottom is pointed to the catcher
4) You have the right grip on the bat with the top hand - no slack/slop
During TTB, the hands don't really move forward as it relates to the shoulder. IOW the hands stay with the shoulder as the shoulder rotates - until 'hip slot' (when the back elbow comes down to the hip). Only then do the hands/forearm push away from the torso, down toward the plate and forward toward the incoming ball.