[obican]

I use Op/Tech straps on all my cameras, almost all of them around my shoulder all the time. It's quite a good system. Shoulder pads are really wide and padded well so it more or less cuts the weight you feel by half to begin with. Moreover, it has system connectors on every piece so you can use the same shoulder pad with several cameras, extend the strap when needed or remove it altogether in a matter of seconds.