During the last cold snap I was skiing with my brother-in-law. I took him to the Boyne Country Sports shop and he demoed a pair of Volkl AC20's. They were a perfect choice for him- an athletic guy and casual all-mountain skier. When I asked about the skis he mentioned that "The skis are fantastic, but I wouldn't expect squeaking like this from a premium ski."
This awakened the my inner ski-tuning geek and I began a lecture about how cold temperatures affect snow crystals and our ability to glide over them. Two minutes into it, his eyes rolled back in his head and some point shortly after that he was gone- not that I noticed right away. I just hope he waited for the chairlift to get to the top before he bailed.
If only I could have shown him this instead. These guys have put a lot more time into the study of snow and have a site full of fascinating pictures...
If this makes you want to learn more, visit any Boyne Country Sports shop and strike up a conversation with the ski tuning guys. You'll find that they are a pretty informed and personable lot who can break things down into friendly terms. If you seek more, most of the shops can usually pull their resident "Cliff Claven" out of the back shop and he can really bury you in minutia.
If you do go in, have them tune your boards up so you can feel it for yourself.
-JJ