Hey guys, I'm new to the board (gonna start working on a Zam and Jango costume) but I had to comment about the jet pack harness rigs.
Mike (michaelmax111) has devised an absolutely ingenious way of mounting his jet pack to his harness. The great thing is its quick and easy to mount (you do need a friend) and its rock solid! In addition there are no visible straps since everything is hidden by the vest. We spent almost 8 hours in costume at Chiller this year and the jet pack didn’t budge at all. I'll PM him and see if he will post some pictures.