I just purchashed a Pocket Wizard set and when I got home to connect it to my 550ex, the reciever has a sync cord with an 1/8 inch jack in the reciever and a PC male plug on the end of the sync cord BUT my 550ex has no PC female! BHphoto told me to by Huamas hot shoe adapter for 30 bucks. is this my only option? I tried using my Vivitar S2 hotshoe slave thingy with a PC plug on it but the hot shoe connectors didn't line up correctly. Any suggestions to sove this would be great. i trust B&H but I wanted to hear what the PR members had to say first. Thanks! -Justin