If the TM Hunter was working well for you, just send the broken rest to GKF and let them analyze the malfunction. In the meantime, save up your bucks and graduate to a GKF Royal Hunter, a Rover, or a Premiere series.

The GKF's are one of the easiest rests to install and tune, are some of the most reliable and durable rests around, are not mechanically dependant or complex, and do no more than a rest should; cradle the arrow until it leaves the rest.

I have 2 GKF "launcher" rests that are 29 years old, a Rover series that is 12 years old, and a Premier series that is 11 years old. They all have seen some hard hunting, are still in great shape, and have never malfunctioned.