Vehicle and manned gun range settings/ammo remaining/ammo selected/mode selected).
Some of the vehicle range indicators are quite hard to read (e.g. panther).
Dragable is nice, but I like not having to much clutter in my view. Also the headset is not like a screen, dragging these to the edge of your view doesn't help, they need to be a readable spot (imagine the screen center is readable, then slowly becomes peripheral version as you move out). Which is why I thought a kneepad would be better. No clutter, and if you want to read these you just look down (currently dead space in the view).