Originally Posted by Mark Elberson
I'm going to experiment a little further today, but my basic understanding is that the FlexTT5 will keep the flash awake continuously, unless a Mini/Flex sitting on a camera receives an indication that the camera has gone to sleep. Only at that point will the PW let the flash go to sleep. I set up a scenario yesterday where I put a Flex under a 580, test-popped it a few times from my Mini, then turned off the Mini. Three hours later, the Flex and 580 were still on. I do need to re-check my settings though, as I may have disabled or delayed the sleep function.