Anyone have experience with the Nikwax treatment on a down sleeping bag? I'm thinking about getting down bag, but concerned with the "what if it gets wet" problem. (I know the solution is "don't let it get wet" but I'm thinking along the lines of Be Prepared...)
Any thoughts pro/con? For anyone who's used it how well does it work? Can you see a difference in how a bag performs/feels/etc. before and after treatment?