My release rate with these are 100%, its important to ensure you dont have excess elastic as it only takes a thread to catch the clip, the other issue is using big barbed hook and locking then to close to the bait, some hooks are not favorable, like yuovella hooks for example.

Other than that race, place a photo of a baited rig ready to cast, must be something not quite right.

There is nothing more gutting though than knowing you just sat there for 30 minutes pointlessly.