Scott back spin 

Scott's back tension releases use the ideal pivot point for release. Put simply, this means you shoot better with consisten results. With your fingers free to get in the right position, you'll be comfortable shot after shot.

• BackSpin finger-hole rotation technology automatically rotates the release to your optimal fire position, ensuring good form.
• Available in Two-finger, Three-finger, Four-finger, Four-Finger Swept.
• Minimal finger separation for feel and control.

has after market finger peace and thumb peg