Has anyone ever noticed this thing on Rottefellas site?
http://www.rottefella.com/en/Product-Wizard/
If you put in your specs and the type of skiing you do at the bottom it gives you a recommended ski length. What I found odd was what it recommended for me. I'm 5'-10" , 210 lbs and boot size 44. (you have to use metric though):
For classic it tells me 200cm
For BC it tells me 185cm
I always had thought based on my weight (which is at least 185 at my most fit) I would be more apt to a 210 or 215 for a traditional ski. I get the same answer at 185lbs as well so there must be some relation they use to my height in their recommendation.
At any rate, it's pretty good because those are the sizes I prefer... although I size up to a 189 in that size step.