Khajiit whiskers a biped object?

[xTrogdorx]

When a Khajiit wears an open-face helmet, the whiskers are rendered with the rest of the head. The problem with this is that some helmets, despite being open face, still partially obscure the face, such as the Dragonplate and Falmer Heavy helmets. And so you get whiskers clipping through the helmet.

 

Is there a way to fix this, such that when you equip such a helmet, the whiskers disappear? Or, are they just part of the head mesh and they have to be rendered whenever the head mesh is being rendered?