I found technic if I press brake a little 10%-15% when front wheel touch ramp. This will give nose of car to rise enough for landing. If too much brake nose will rise too much only rear wheel touch ground when landing. If too low or 0% brake apply nose will dive only front wheel touch ground when landing. I found this technic by accident. Help me to jump with Super Truck better than before. Please explain in term of physic.