So for the past 3 years I've been using Yongnuo 602s and have been fairly happy with them (there has been some misfiring through the pc-port on my 5d, but that could be for a variety of reasons). Lately I've been thinking I need more than just the 3 receivers I currently have and thought it would be a good time to upgrade all of the units.
Is there a particular model of yongnuo product that has been released in the meantime that you would recommend ? I'd be particularly happy if I could ditch the CR2 battery requirements of the transmitter (and even the AAA's in the receiver are slightly annoying); also, the transmitter door has also been a problem at times.
Thanks !

