For every take off, guess what your weight is based on fuel load and cabin contents. Either calculate or at least guess your density altitude. Then guess where you should break ground. Every flight! When you start, you may be off by several hundred feet. After doing it for a while, you should be able to be within +- 10 feet for Every take off.
Likewise for every landing, while on down wind, pick the point you want the wheels to touch, and the point where you want to stop. Again, when you start you will likely be several hundred feet to thousands of feet off. With each landing, you should be better. Practice until again your touchdown and stopping points are +-10’ from your chosen points. Then start moving the points closer together. Move the actual touchdown point closer to the threshold. Keep at it.
Every takeoff and every landing should be practice for flying the airplane with as much precision as possible.
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