You know this situation just too well: the spinal correction is the next step and polyaxial pedicle screws have been placed. Do you really want to give up control during correction due to polyaxial head movements? Imagine being able to switch between the best of both worlds and switch between polyaxial and monoaxial functionality at any time during surgery. Embrace the possibility of true parallel compression/distraction, powerful reductions, and accurate spinal corrections.