I personally would rather see a bigger FOV without pivoting my head. That way you take in more FOV at once. If you want to pivot your head you could get by with a 300 foot FOV. IMO a bigger FOV is always an advantage especially with a flat field and sharp edges. You can pick up birds at the edge of the FOV when you have sharp edges and a larger FOV allows you to scan a larger area at one time. The bigger FOV also gives me more WOW effect and a more immersive feeling. Some people are content with a smaller FOV and others live for the big FOV. It is a matter of personal taste. Interesting concept though.Dennis,
All you have to do with the Swarovski CL Companion 8x30 B when you use it to get that mathematically created extra area in the FOV that the Nikon 8x30 HG has is to pivot your head an inch or so in the appropriate direction while you are looking through it.
But if you would rather roll your eyes in the appropriate direction rather than pivot your head then I recommend that you get a Nikon 8x30 E2 which has a FOV of 8.8º.