Ah the bug that fallout 3 and new vegas has when editing the headgear. If you have noticed,it is now changed. Sad thing is that when doing it with headgear it can mess up its position. What needs to be done now is placing it in the right place. You can do this with nifskope or blender,it will take some time but you open it in one of these and move the mess towards the place it should be. In your case you should be lower the mesh and check sometimes if it is in the right place. It's a matter of moving down,saving and checking untill it is right. remember that you need to use the transform apply in nifskope. One of the reason why i prefer to do it in blender. The reset making it to 0000 is not a problem.