The settings I'm using now now are Environment 8 (may go back to 7, still deciding), Glossiness 5. Additionally I lighten or darken the speculars until they are about 40 40 40 to 50 50 50 overall RGB value. In the model, I hex edit to ensure the specular settings are E5 E5 E5 FF / 00 00 00 42.
Been reviewing my airfield objects