The ONLY Release by Carter Enterprises delivers one of the most significant advances in hinge release technology in 50 years. Unlike traditional hinge releases that use the hinge position on the half-moon to control firing speed, the ONLY utilizes three selectable crescent cams that range from 0° to 5° of radius curvature – this results in total customizing of the release head angle and firing speed. The ONLY’s angle can also be adjusted up to 35° , and firing speed adjustments are virtually limitless thanks to the Variable Crescent Technology (V. C.T.). In addition, the ONLY is self-loading via magnetic-head-return, and is compatible with a D-loop. Features: ONLY utilizes three selectable crescent cams that range from 0° to 5° of radius curvature for max customization Angle can also be adjusted up to 35° Variable Crescent Technology for firing speed adjustments Self-loading via magnetic-head-return Compatible with a D-loops Carter Quickie 1 Black Scott Strap Release RWQ11637