I grew up just a couple of miles away from this private lake and had the chance to ski on it maybe 20 years ago. Friday Night I lucked out and was invited by Julie Parker - http://julieparkerphotography.com/ - also a great slalom skier, to hang out and do some filming while she and some friends skied the course.
https://www.youtube.com/watch?v=Kd6hLUQPnmk