We keep very careful records on how a specific film is responding in a specific process. None of our processes are the same as what was originally intended for the film. All have been modified and tailored to our past experience with each film type, brand and format. The original process is not at all appropriate for salvaging images from long expired film.
In order to salvage the best possible image from a film, many of these processes result in a Black & White image even though it may be a color film. In our opinion it is better to get a higher quality image in Black & White than a lower one in color or alternately to get something recognizable in Black & White than nothing in color.