Change FOV onPreCull, odd behaviour.

Hello!

I know the Fov on VR mode is fixed to 106.118 but I would love to be able to reduce it onPreCull to quichly remove some unnecesary items.

I came across this thread where I cannot comment: http://forum.unity3d.com/threads/vr-field-of-view.358816/

I am changing the fieldOfView variable in code but I have 2 problems:
If the camera is set to "both eyes" it changes just the left one (definetly a bug)
If I reduce it onPreCull and restore it onPreRender it does not seem to work...

Change FOV onPreCull, odd behaviour.