Hi Adam,
Glad to hear from you again, Please click here to review my analysis of your serve. The lessons and drills recommended to review are:
https://members.tennisevolution.com/lessons/low-high-elbow-mistake/
https://members.tennisevolution.com/topics/serve-motion-no-racquet-5/
https://members.tennisevolution.com/topics/on-edge-drills-5/
https://members.tennisevolution.com/topics/grip-change-6/
Best,
Herman Krackow,
Head Coach