The best quick release tank strap on the market today is either Aqualung or Apeks
Grip-Lock Tank Band Assembly For Non-Wrapture System BCD (they are clones).
See Youtube video:
Only choice is what brand name you want to wear on your gear.
Note: Tank band is sold as one band only for $45, but thanks to divad's previous post, you only have to buy one. Make certain, to like his pearl of a post.
Lastly, Rubber traction pad listed in description is Not tank grip pad like Halcyon Octogrip, but is affixed to both sides of static buckle to protect tank and to cushion/hold (I think).
Brother has Aqualung Axiom with built in, that is why to get For Non-Wrapture System option.
Make claim that is pinch free, and is, if you read instructions and pay attention to what you are doing.
'Nuff said.