Thanks to Roderick Quebral, I got the necessary motivation to draw a correct post-80 SD40-2 dynamic hatch. This is a 3D printed standard range dynamic hatch with Athearn dynamic fans installed. For each variation of dynamic hatch (extended range, standard range, post-80 export, etc.) I created an Athearn-compatible version, where the slightly oversized hood radius matches the dynamic hatch and a prototype version, where the hatch features a corner radius matching the prototype. This printed hatch is the prototype version. I have "blended" the hood radius of the hatch to the model aft of the angled transition at the rear of the hatch.