So i think i may have stumbled upon a fix for the stutter/judder some of us are experiancing with PiTool versions later than .144. Basically setting the pi_server service to run in compatibility mode for windows 8 within the properties has completly removed the stutter/judder. I’ve done a fair bit of testing and can reintroduce the stutter and clear it by doing this.
Hope that helps anyone suffering with this problem. I’m over the moon i can now order an 8KX without worrying that this will be an issue!!