ANALYSIS is Faulty! The speed of the shuttle don't remain at 261 km/h all the time. It leaves the racket at that speed, but when it crosses the net, it's speed decreases by HALF already! = 130 km/h! and this calculation is made from mid-court smashes. When it reaches you, it is already less than 100km/h Secondly, The racket weight is NOT 80-90g! When strung and applied grip, it is about 90-100g. Thirdly, not ALL fake moves will cause you to sacrifice the best timing.
Some of the analysis is reasonable, but the 3D animation is horrible, with the stupid calculation of shuttle's speed! Admittedly, the shuttle can go as fast as 300kph, but just for an extremely short time! When you reach and hit it the speed is much less than 100kph. High speed can only be achieved when the shuttle just leaves your racket!!