Hi Peter,
Please click here to review my analysis of your backhand lob. The lessons recommended to review are::
https://members.tennisevolution.com/topics/topspin-lob-7/
https://members.tennisevolution.com/topics/high-lob-2/
https://members.tennisevolution.com/topics/chip-lob-2/
Best,
Herman Krackow,
Head Coach