The YN-622C-TX Controller has just been released; a good time to finish off the old thread and start part 2.
Version 4.06 of TOYUG (The Other YN-622C User Guide") is now available. It includes information on using the 622C-TX.
Any feedback/correction is appreciated. My thanks to the many users who have contributed to TOYUG, and especially for editorial help with version 4 from Phil Weston, UK.
Thanks, too, to Lianggc for creating such useful devices, and sharing insights with us.