I was poking around here looking for kid skis and saw your post. I seriously doubt if you will be unhappy with the S12 Fusion. I'm 5' 9", 165 and ski on a 168. It truly is a do-everything ski. However, you will quickly note that the guys that developed it shared notes with the guys in the race dept. It is stiff and responsive with a capital R. Put it on edge and load it up and it will take you right off your feet. It will play slow but it really likes to go fast. It will do bumps but will leave deep trenches on groomers. It will float powder and crud but craves hardpack. Yea, I think you're gonna be happy.
Done for the season, but counting the days until it snows!
ps. Next years binding is a Tyrol. So your double lucky, at least by this Marker freaks standards.