I saw you link over on SimHQ, figured I'd follow the main thread over here.
I'm really enjoying what you're doing and where it's going. I get the concept of combining the director and the range finder for usability, however as someone else noted I do like the authenticity of having them split. Range finding, particularly stereoscopic is hard to do in real life well and it's almost impossible to simulate on a monitor to the degree of fidelity needed for warfare. I would think having a rangefinder station that user can utilize as they prefer, but the main action being in the fire director. The FD is where a lot of the tactical versus technical decisions are made, which to me as the player is the interesting part.
I'll DL the tech demo you put together and give it a go. Keep up the great work!
-Jenrick