Yea, LKN Ski Club is active and slalom course ski as a club once per week (in season) off of Williamson Rd @ Eddie’s. Located on the east side of the lake in Mooresville.
https://lakenormanskiclub.com/about/contact-us/
i can provide more info about skiing in general on the lake if you are into barefooting, trick, or free skiing. There is a lot of wake surfing, especially on weekends but I do not know much about these individuals.