OB I think that opening your lake up to the public every sunday would be a great idea that others should follow, I think that for a lot of people who are even remotely interested in skiing the course the biggest obstacle becomes finding a place to ski. I know this because while I have always been able to ski on my lake up north, finding a place near my home with a course was even harder, I am just this summer learning to ski the course for the first time after wanting to for awhile, and the hardest part was finding people willing to let me use their course. You may end up with people who aren't really that into skiing after they try it, but it gives people the opportunity to at least try and maybe a few of them will become new slalom addicts themselves.