Radio Triggers ...and a reluctant model

I recently acquired an e-bay radio trigger and three receivers (because I have three flashes) and conscripted my son, Rob, to model for me so I could test these triggers. I used all three flashes, one as a main light, one as a hair light and the last as a background light. I also used a reflector for fill. I found these triggers worked OK, but the tilt mechanism was not strong enough to hold the flashes adequately. I used one of my off camera sync cords attached directly to the umbrella flash bracket with the other fitted into the trigger, which just hung from the cord. That was a lot stronger so I have ordered two more off camera sync cords so I can use one for each trigger.