There is a school here who would tell you if a razor is quality it doesn't matter whether it a 4/8s hollow grind or an 8/8s English meat chopper Wedge, it will shave your beard no matter how tough it is.

I truly believe that and my evidence is back in the day when barbers really knew how to shave and shaved folks all day long they pretty much used 5/8s and 6/8s hollow grind razors and used them to shave whoever came into the shop and were able to give those demanding customers a perfect shave.