Start off with the extension of the ankle joint, to give the ankle more turning angle.
Next on the rear leg thruster. To enhance the flexibility of the ankle movment, the restriction part for the rear thruster is removed. Now the thruster got more angle movement.
The thigh portion. The joint cap was relocated to the outer part of the opening to increase the movement flexibility on the thigh area.
Close to the knee area. This portion of the knee cap structure need to be removed temporary to allow more bending angle of the leg. It will be installed back on the later stage.
Comparison of the modded leg with the original with different angle view.