Not necessarily, though that would be the simplest solution. What I mean is run 2 identical units, then you don't have to break the creative flow by thinking of several different sets of operating instructions.
dmward wrote in post #15559742
I'd sell the 580EXII, then get two 600EX-RTs and one or 2 STE3-RTs.
With the STE3s you can have the two 600s off camera for lighting the event and fire them from the STE3.
Sell one of your older 1D(x) bodies and get ether another Dx or 5dIII. Shooting events its always nice to have the same equipment to minimize fumbles making changes.
David, the second-hand market outside the USA isn't always as buoyant as in your neck of the woods. Different countries, different markets, different regulations, different buying propensities.
I wouldn't disagree with your assessment or suggestion, I was simply allowing for possible disparities in custom and Customs between UAE and elsewhere which are unknown to us in other countries.