Since I’ve always been a Canon shooter it never occurred to me that the Sony hot shoe would be physically different then what I had always used in the past. This of course meant all the previous purchased hot shoe accessories or devices were not purposely designed to fit.
I found out about the physical difference when I tried to use my trusty wireless triggers made by Pocket Wizard. The specific model I use are the Plus II model.
What happens is when you install the PW’s into the Sony MI (Multi Interface) hot shoe the trigger never has a secure connection. Even though the thumb dial is tightened down completely the trigger will wiggle and will eventually pop off.
The other issue is the inconsistent flash firing.