Snowmobiling blues...

Great stuff! Is your wife lighter than you? Just small differences will make it better or worse. My son and I got into some suuuuper fine powder down in a deep draw and under some trees (where the snow would just lightly 'settle in'), and my heavier dual was better than his single. It was just the 16" longer and 1" wider track on my dual that made the difference. Off-trail is quite a different animal.... we want to do more, and my son's got a longer track kit that we have yet to install.
Yes my wife is lighter than me but also hers is a little more Snappyer LOL. They're identical machines for the most part besides color. Hers is a 153 and mine is a 162. Then both having the same motor. Out on the trail hers is a lot faster and snappier and for goodness sakes I get on hers after riding mine and punch it and look at the sky! LOL you can imagine what would happen if we could all move our rear wheels 6 in forward LOL...