The 3D. Radius sidecut allows you to make a variety of different turn shapes, and the extended radii in the tips and tails also gives the ski a more forgiving, less catchy feel, which comes in handy when you're not on a perfect groomer.
While not as wide as some and now as powerful or precise as others, the Deacon 80 still proves to be a valuable ski in the all-mountain carver category.