This is my first try at color in any film. I just bought Kodak Ektar 120 and need some advice on shooting outdoors regarding skin tones. Usually to get the skin tones in B&W in the shade I desire, I cut EI to half of what the box states. Do I do the same for color or do I just go with box speed? BTW I am using a Fuji GSW690III with a Voigtlander II reflectance meter.