I love to make a bank of lights in a line and group them - you can change the power of the whole group at once and move it around your figures to fake a GI type set up. Then I primariy use distance of the light group to find the spot that best brings out the skin textures there is always a sweet spot. I use always quadratic lights to do this so it has minimal impact on the rest of the scene. ALl this with Vue 5 by the way.