So both lock head and hip have an issue where positional its very stiff. In case scenario as visible in video, lock all have the best movement for hip but the spine/chest/neck armature break. I'm not sure if you can change it to have it set like so or a hybrid of lock hip and lock all I think that would be best case scenario for better hip movement. I have also included calibration information as well. Please note: this model has been scaled to my proportional information so elbows and knees line up. I can provide a base of mine with the rig for testing as well if needed.