Start: Same setup as for the split squat, except you stand with your feet parallel and hip-width apart, 3 to 3 ½ feet in front of the weight stack.
Finish: Stride toward the weight stack with one leg, finishing with your back straight, your forward nee over that ankle, and the top of your forward thigh parallel to the floor. Push back up to the starting position, finish the set, then repeat with your other leg. Start with light weights, no matter how strong you are.