Quote Originally Posted by markbarendt View Post

Kodak (and Fuji and Ilford) actually measures the box speed per an industry standard, if you use your incident meter and your shutter and aperture are accurate you can get very close to shooting at the standard, which means you can print in a nearly standard manner.
That is true - but their testing methodoloy gives you no information about latitude in highlights and shadows. Transparency film typically blows out at +2 stops but can have -6 stops in the shadows (DxO test results) whereas neg has +14 in the highlights and -2 in the shadows.

Given this information, the 'correct' exposure based on box speed may blow out highlights or block up shadows depending on scene contrast. Without checking, it is therefore better to slightly underexpose transparency film and overexpose neg film. But with checking it's better to place your tones where you want them!