Leg presses dont buckle you over. And the angle is hard on squat compared to legg press. I find no carry over in strenght from one to the other. I squat mid 700's and can leg press a full loaded leg press with 45's hanging off the handles and a girl sitting on top holding a 45 i think not counting th egirl it was 28 plates full and deep for 6 to 8. And could do the same when i squatted 100lbs less then i do know.