pjx99 - No, you do'nt need Raytracing if you use a Reflection Map(AN Image_Map node plugged into the PoserSurface Reflection node.) 

In this case Acadia had an idea of what she was talking about, the Diffuse Value would need to be zero, for the Reflection Value to be 1, to get the Reflection Map to reflect in/from the object %100.  Adding a Diffuse value, means taking away from the Reflection Value, with obvious consequences.