for those that are using Pocket Wizard FlexTT5/MiniTT1. is it possible to use FlexTT5 on camera w/o using the HotShoe? I noticed that camera/P2 port - but believe its for remote trigger camera.
what i am trying to figure out is. I like to have my 580EX on top camera in ETTL mode.. but want to use the AC3 so i can control the OCF in both ETTL and manual mode.