Watch video and learn why it is important to use more than one flash together in bright light situations!
When photographing in very bright sunlight, using only one flash will usually not be enough power to match the exposure created by sunlight. Consequently, pictures tend to be unbalanced- either the subject is properly lit and the background is blown out (white sky) or the background is properly exposed and the subject is under exposed or very dark.
One simple technique to create properly exposed images in bright light with a full dynamic range is to group flashes together to make them more powerful. When putting 4 flashes together we can generate plenty of power to create stunning images with rich color and detail but also we can increase the quality of light by creating a much larger light source.
Here are some examples of using my Big Boy Bar and grouping 4 flashes together. Notice the studio quality light without using any modifiers on the flashes.