A Strap is just that. A Strap. A harness is simply a Strap with more straps. As a Ex-Combat Film Camerman I have always have looked for ways to put on and get out of my gear pronto. I also kept my eye on gear that was stable, light weight, strong and comfortable. An extra snap or clip was one to many for me. The only reason our transmitters come with straps is because they are the cheapest way the maker of the transmitter can sell thier gear. It's not the best way by any logic other then cost. So I made my own Transmitter Tray. It's a top of the line, bench mark unit. Of the hundreds that I've sold over the past three years only two have been returned for personal reasons. That's how I know they are that good. The guys and gals, finger and thumbs, and thumbs only fliers just love 'em. It's not a cheap unit. The really good stuff we fly with usually isn't. That's why the transmitter folk include a cheap nylon strap with a logo and a snap. I belive that the tray should do the holding so your hands can do the flying and that couple of percent of my attention as to how I'm hanging onto my transmitter and where the switches are is better focused on my flying and not on steadying the transmitter. check out www.marktrent3d.com and see how he agrees with me. He flys with my Transmitter Tray. By the way if you ever are in a wheel chair this unit will fit you there as well. all my best, Jeff www.rctraymanusa.com Sandler