In case any of you missed it, during confinement, Ivan Lawler uploaded a 6 part series on kayak technique that is, by far, the best video I have watched on the topic (and I am a technique freak). Don´t be discouraged if you don´t fall in love with the first chapter. It is about the feet (important but not the most fascinating part) and the sound is a bit low. All problems solved in the following chapters. Really good image and sound. And the wisdom of the champion himself.
www.youtube.com/channel/UC8KuVUSSDZraBFmTwkIyOKA