I recall an early PFL in a Chipmunk when at 50ft being told to overshoot the engine although being warmed up did not respond the farmers face was a picture as he watched from his tractor,as we were about to touch the engine came on line and away we went. I these day usually go down to 100ft with students as at 500ft they have not usually thought about the wind and can end up short.As most people have said you cannot beat practice then more practice.