WHY are their skis skinny and long then? That doesn't make more of a difference? Are you saying a pair of waxed powder skis would work better for cross country than nonwaxed cross country skis?
No I'm saying it's a good example cause it clearly shows how important glide is. They use next to nothing for ski's to get l lighter weight and better stamina and depend soley on the wax glide for any solid momentum. Throw a steap hilll in with the right wax glide and rockets are engaged.