Resistance style releases are fairly new to the market and they operate by setting the release weight to your holding weight plus some differential. Once at full draw, activate the release, then add that differential weight and the release will fire.

It is a simpler way to shoot using back tension because there is no rotation involved, just squeeze with your back and it will fire.
But resistance style release aids are the most difficult to design AND manufacture; succeeding here is what sets a premium manufacturer apart from the pack.

The NEW ElementTL is the second release in STAN's lineup to use the Smokin' XTM sears; it comes in both medium and large sizes as well as three and four finger configurations.
Whether your shooting a light draw weight for indoors or a heavy 3D setup, the ElementTL offers extreme repeatability with the reliability and consistency you can only find in a STAN.

Sears - Smokin' X
Like anything worth having, STAN's Smokin'X sears were a long time coming.
Theory alone will not result in a design that is repeatable. Only painstaking craftsmanship and revision after revision will get you there and with the Smokin' XTM sears we took our time.

Consistency is key with a resistance release and the Smokin' X sears deliver a very tight +/- 1/8 lbs from shot to shot and have an operating range from holding weights as low as 9 lbs and up to 29 lbs.

Currently only available in 3 finger Large