Leg Press Range of Motion
Keep a slight knee bend at the end of the range of motion to keep the muscles under tension. Don't lock out. Lower ALMOST all the way down. If your glutes lift off the seat, you've gone too far. That said, if your range of motion is just two inches, you are ego lifting and people are laughing behind your back.
Unilateral Leg Press
This one-legged leg press works best with a more horizontal leg press machine.
Two/One Leg Press
Lift with two legs, then remove one leg from the sled and lower the weight slowly.