HARP

Adding 10 degrees of knee flexion may or may not clear the foot over an pbstacle. That depends on the orientation of the entire leg to the ground. In one orientation most of the angular change is in the vertical direction. However, in a different orientation the same knee angular chane may contribute close to nothing in the vertical direction. So a seething dog bites your sorry a__, or not, depending on the height of that fence, your speed, and whether the knee angle attained was in a best orientation to help clear the fence.