Single frustum cull for PSVR?

Hi,

I noticed that there appears to be 2 frustum culling passes in the render thread for psvr/ps4. Would be possible to replace these with a single frustum cull using only the head orientation and wider fov to encapsulate both eye frustums & thus be more efficient? Could you also extend this to the occlusion query / culling as well?

Thanks, Pete