I have been using Canon 5d series for the last five or so years. As a "prosumer" style ff camera, they do not have a built in flash. As a consequence, electrical sync cords are a must. I am tired of spending $150+ for replacing these cords every other year or so, despite taking compulsive care of them. Does anyone know if there is a way of simulating on-camera flash from the hotshot to sync through a fiberoptic cable to Sea&Sea DS-1 flash.