The plates run clean every time. Because the subtractive developer is water-based and contains no oils, the unexposed diazo floats away leaving a completely desensitized plate. With no residual diazo, there's nothing to etch the plate and no unwanted sensitivity for ink to cling to. Even if the press is stopped at mid-run, subtractive plates stay clean. Subtractives will help you compete with the quality standard set by USA Today.
Subtractive plates can hold the smaller, finer dot that makes process color jump off the page.
With properly exposed plates, there's no dot gain or fattening of the dot. But other factors such as the registration system can limit printing quality. Too One of the first things you'll notice about subtractives is the clear developer. It is generally non-toxic, biodegradable and odorless. You can wash it right down the drain without upsetting the environment, but check local regulations first.