The clips do not have to be of great quality. Smart phone or camcorder is ideal.The slope should not be tilted to one side and provide a safe spot for the camera man to film and a safe run out for you. Ski in control, ideally directly towards the camera man. You don’t need to do anything special or try to impress the camera. Just do some normal turns, safely and control your speed. With one run and a few turns towards the camera I should already be able to give you some good feedback for a short video check. Ideally you could send me a couple of videos of you skiing on runs of different difficulty/steepness. I will then pick the best scenes and custom tailor my analysis to you your wishes. See example on how to film below.