How to use your NIS plate – Madshus video https://www.youtube.com/watch?v=0ybDz65KjWU
Choosing the Right Race Skis – Part 3: Get the Most Out of Your Equipment http://news.madshus.com/2012/12/19/choosing-the-right-race-skis-part-3-get-the-most-out-of-your-equipment/
This page has graphics near the bottom showing EFFECTS OF DIFFERENT BINDING POSITIONS
With a high tech waxless ski like the Peltonen Nanogrip it is critical to use a NIS plate since it allows one to tune the grip by adjusting the balance point. I found that at -20C, -15C last winter moving the NIS plate forward one notch solved the Nanogrip issue that some folks complain about at cold temperatures.