WOW,,, nice vid, I think you will find that the difference between a 15" wide track and what ever else will be minimal, the difference is the POWER. I think power, and obviously track and track frame setup are crucial, the difference between what you are building and the rest. Since the snowhawks came out I knew there was not enough track hence the power. Just watching that vid of the 174 tells the story, that's why I think something like the 141 powerclaw might just be the balance of real good traction and short enough to be fairly nimble. What I see in this category (it seems) is struggle climbing in fresh snow, you can only side hill for so long and at some point you have to turn uphill that's where what you are doing will be the game changer...............