thanks for the reply guys - but I bought a Megalight 158 last feb
As this thread demonstrates, it was pretty hard to find info on Nideckers in general and even harder to hunt one down. Despite the lack of info and based on the 1hr session I had on my friend's Ultralight, I ended up buying one from a small shop in Southern California which I found in a craigslist ad.
MpJames, if you're still looking, I could point you to that shop. PM me if necessary