Not really much of a trick, just use either side cutters or flat face cutters or the oetiker tool to get under the tab, then peel it off. For the style without the tab, just use your tool of choice to cut 90 degrees to how you'd tighten it, or you can also over tighten it and it will break off. The upsides are much more even 360 degree clamping, which means less chance for leaks, and no internal parts that mangle the tubing. The design Bobby's selling eliminates the internal part that can often damage the tubing, and provides more even pressure than a standard worm drive clamp.
