Interesting that you thought the Nikon HG 8x30 has sharper edges than the Swarovski CL 8x30. I have had them both and IMO the Swarovski has much sharper edges in agreement with Allbino's.
Let's just suppose I have a real good copy of the Nikon and obviously with the close focus being 5.5 instead of 6.6, it leans that way. I also feel that ALLBINO's did a pretty solid job of 'dinging' the Nikon but was pretty lenient on the Swaro.
But given this 'edge' thing. If the Nikon HG has a FOV of 435 feet and has a bit of blurriness on the edges, ....when compared to the Swaro that has a FOV of 390 feet, but it must have some edge blurriness, the actual FOV is still much greater in the Nikon. Right? But ALLBINOS's barely takes any points off Swaro for having such a low FOV and actually takes points off of Nikon as well even though they have a large FOV. Makes no sense
To test the sharpness / edge, I will be about 30 yards away from a horizontal row of bricks. I aim each binocular at the same mid-point and can see how far down either way the sharpness holds. Looking at my notes, I can see I was a bit off in my comment as I do have the Nikon and Swaro being about equal,....but I also have both being beat in sharpness to the edges by my Meostar. So I will give you this. The Swaro and Nikon HG are about equal. I am not accepting what ALLBINOs is stating.
To my eyes as I move out to lengthier distances, I feel the sharpness still belongs to the Nikon over the Swaro but who knows, it was close.
I have heard reports of the Swaro having a close focus better than what is listed (down into the 7-8 feet range), but not nearly that of either the Nikon or the Meostar by 2+ feet min. (into the 5 1/2 foot range). Funny that ALLBINo's only has Close Focus accounting for a total of 2 possible points. If close focus was taken into account more than ALLBINO's elects to do, the Nikon would be closer in points.
In practical birding situations such as focusing on a bird at 5 yards and then moving out to 15-20 yards, I saw a noticeable increase in the 'turn of the focus wheel' as I moved out to focus on more distance objects. The Swaro needed that extra little movement of the finger to turn another x degrees. This is one aspect that is not rated by ALLBINOS but is an important aspect to birding. Now ALLBINOS does look at Focus as a category and even though Swaro's is 560 degrees to turn and Nikon was 390, Swaro gets all points while Nikon looses. Not sure on this score.
I think that people actually have to take a look at the Nikon with their own eyes and let that be the judge.