Iron Man Range of Motion

So I have a friend that wanted to model this, and he was worried that he couldn't move his neck. So I made some range of motion tests with the side view ortho. I guess I had a little fun with it.

The upper body unlocks and shifts down, partially covering his power source circle thingy, and allows more range of motion for his head. Jarvis locks it during high speed flight and during emergency situations (like crash landing), but still allows for limited range of motion. The rest of the armor panels lock and unlock/shift similarly.