@ral
I am very familiar with alpine skiing, been on the slopes for over 30 years and worked in the Industry for many years as well. There is little alpine skiing can learn from waterskiing or our technology, they've generally been there, done that.
the reverse sidecut gig is all but gone, there are virtually no manufacturers of skis like that outside a few mom and pop shops.
My comment is not a knock on waterskiing, so dont take it personally. We are but a minnow in an ocean compared to Alpine, and we need to embrace it more as we dont have the $$$ or people to come up with the tech like they do.
I don't think a reverse sidecut waterski will do anything for shortline skiers, but if we look at jumpers, there is virtually no sidecut on them, waterskis rely more on rocker than sidecut IMO.