It was bullet-proof in the morning, so we took a break to let the snow loosen up. After that, it was fun carving throughout the day until both our legs and the snow turned to slush.
Everyone in the photo was riding anything between 152 and 167. I would have been on my Prior 183 WCR, but it hasn't come back from repairs yet. There was another guy on a Coiler 187 custom that wasn't in the photo. However, I don't think board length matters at any mountain. Since I got my Prior 183 (14m SCR) I've ridden it very comfortably at SES 2007 in Aspen (Buttermilk and Snowmass), Nakiska, Sunshine and at the steeps in Golden. To answer your question though, Nakiska is probably the widest open-carving hill I've ridden at and loves to be trenched with long boards.
Sorry, I don't have any action shots. We were having too much fun playing cat and mouse to take many photos. I will try and distribute the remainder of the photos I did take...
On another note, if anyone is in Kimberley next weekend, my entire family and I will be there with 3 hard-booter in the mix.
Steve