perfect landing?
hmmmm.. a perfect landing is when you get you aircraft safely on the ground and all aboard are SAFE..as well as your aircraft.
ideally you want to touchdown before the 1/3 marker..thats where the two huge solid painted white lines after the threshold.
..you could have a land long instructions or a short approach approved for that particular runway as well..
if you landed and all your pax are safe..then you had a perfect landing!!!!