im just pulling back with my thumb, hardly moves like the spring tension is too tight.How are you trying to move the XR lock? While the XR lock springs are stiffer than Benchmade's Omega Springs, the two Terminus XR in CTS-BDZ1 steel I've had no problems with.
Pulling with one finger is not recommended for XR lock springs or Omega Springs, as it makes it more difficult to operate and unevenly wears out the springs. To operate the XR Lock I would recommend you pinch the XR lock with your thumb and index finger, instead of just using your thumb. Due to the size of the Terminus XR, the end of the handle always seemed to be pressed against the palm of my hand, giving me additional leverage and stabilizing the knife when my thumb and index finger pulled on the XR Lock to manipulate it.im just pulling back with my thumb, hardly moves like the spring tension is too tight.