Just wondering if anyone has experience with using a sync cord with the Canon 10D. I had heard (from a salesperson) that if I connect the cord directly to the 10D, it may have problems if the lighting sends too much voltage through the sync cord. He recommended something that fits on the hot shoe that would regulate the amount of voltage that goes to the camera. My question is, "How does everyone sync their 10Ds? Do you use the PC terminal or the attachment on the hot shoe? If you use the PC terminal, has anyone ever had any problems with that? Any suggestions would help. I have a shoot on Sat.!!! Thanks!