Too funny..
I am not in Norway, I wanted this saw for limbing. I also have my ground guy run it alot. Cutting a 6" limb with a 18" bar seems kind of crazy to me. It is easy to lose track of where the other end of the bar is. Or if you are cutting out towards the tip of the bar, you lose a lot of leverage and control of the saw. I think it is much safer to have the bar length that you need and no more. My main saw is a 441 with a 16" bar on it. Yes, I carry a 20 & 25 inch bar with me in the truck. I have had the 20inch bar on the saw twice in the last year, and haven't had the 25inch on the saw, ever.
But my point is, right or wrong, I bought a "pro" saw and I feel that as the "pro", I should be able to choose a shorter bar and not have some snotty engineer tell me that I am not "authorized" to run a shorter bar. As soon as something happens to this saw, it will be replaced with a Husqvarna.