Sometimes the simplest solutions are the most difficult to see. Case in point, I discovered a quick work around for the problems I have had with the YN565EX flash not firing all the time when using the YN622C-Tx controller: Set the YN565EX as a slave! Just as long as it sees one of the other flashes fire, it's good to go. With that solved, I spent the day photographing a bloom on a Polkadot plant using macro photography with focus stacking. You can see the results on the Luminous Landscapes forum: http://www.luminous-landscape.com/forum/index.php?topic=96609.0. I will most likely add one of these images to the portfolio here.