Sadly, my PW flex system rarely gave me consistant results. When they worked they were great but at wedding receptions I had major problems on more than one occasion. When shooting a wedding you just cannot have problems with things working, theres no time to diagnose the problem. Last time i used them only one of two lights triggered and all the settings were correct so i tried it with my other flex module to trigger it and still had issues. Then later the other one worked instead. I had it all set up at home testing that ttl and everything was working before doing a headshot of the public library's new board member. I could not get it to expose correct when there. I had to drop the on camera exposure to -2 stops. WTF!
PW are friendly at helping when i call who can call them and talk to tech support when in the field?
I dusted off my plus II's and have a whole setup now using my 580exII's manually. I'm not even going to use TTl again til i can afford a full set of Canon RT flashes, which could be a while since i've spent about 6G's recently.