Improve your kick smash by using an Eastern backhand grip, rotating your body and holding the rotation, pushing out your chest, putting your right foot towards the fence, hitting the ball behind you, using a drop-up preparation, and keeping a loose wrist with a higher grip.
This is quite helpful if you are looking to add or improve the kick on your overhead smash. Coach Sven provides a lot of specific technical points, from grip and body mechanics to contact point and follow-through. Paying attention to these details can really change the effectiveness of this shot. Understanding the subtle differences compared to a flat smash is key to mastering it.