QUOTE(Everdying @ Jul 31 2013, 11:52 AM)
how bout cotton carrier? not using original strap hooks to mount...but at least the bodies dont dangle around when you walk.
but apart from that, optech i think is the only one that uses original strap hooks.
Yes, I think Optech one is cheaper and more importantly if you want a system that uses the original strap eyelet. Cotton Carrier for me looks a little weird with the camera hanging on the chest.
Forgot to mention another brand which is Carry Speed. Some say it's a knock off from BlackRapid but I must say a very good knock off with some great innovations added. I like that they provide an arca swiss plate with a swivel ball connector which distributes the force / weight instead of hanging directly from the screwed tripod mount. It also gives you convenience of mounting the camera on a tripod / monopod as the ball connector can be folded to one side.
Also, I like the fact that there is an option for long lens attachment. The main plate goes onto the lens foot while a secondary connection goes to the tripod mount on the camera body.

Your camera with the ball connector plate can also be made to hook onto the Spider holster if required.