Will these 2 mix well together. Right now I have a Canon 430exII and 2 yn460. I use one Yn460 for background set at 1/4 power. The other Yn in a softbox at 1/2 and the canon 1 stop lower than the YN in another softbox. With this set up I shoot at 7.1 @ iso100. Now if I was to add a AB800 and make that one my main I would have to shot at 1/16? and that would create a white balance problem?