Taste varies between people and cooking's primary goal is to produce the tastes we prefer, but you may want to consider backing off from black scorching (smoke and grease production). Meat browns at 300°F. Above 355°F you'll get burning and produce the black compounds with a bitter taste and which may also be carcinogenic.
As Meathead wrote, "What you don't want is black meat. Let it go too far and it turns to carbon. Carbonized meat may be unhealthy."