COTE needs more speed calcs definitely, but also AP calcs. I have seen various characters have hypersonic levels of speed due to their verses, but still cap at street level. Not only that, the calc you posted can have transonic to supersonic speed if I am not mistaken, since Tsukishiro's normal punches would be at Shiba's level which were FTS (343 m/s). And also, someone put 686 m/s (supersonic) from my calc, but I don't know why they did. I asked for reasons but I haven't got my reply. The end approved was 401.31 m/s, which means that COTE would be getting bumped up to at least supersonic for now.
Also, we just got to wait for the feat where Ayanokoji makes Nanase's hair fly. If the range of the attack (the winds blown) are up to 10 meters, then I do think that it should be at least transonic and a shock wave. Some people even argue that it can even be an atmosphere pierce, which is High Hypersonic (11 km/s or 11000 m/s), but that's only a possibility. As soon as the anime adapts the scene, we got to discuss about it in a thread. Also, multiple translations of COTE even take Housen's tennis serve as "as fast and powerful as a cannonball".
That thing would scale the verse to a fine level too. Let's wait and see how anime adapts it, and if it really takes it as a cannonball.
Also, here's the translation for the cannonball thing (it's on the internet):
and the source is
https://asuralightnovel.com/novel/classroom-of-the-elite/chapter-671/
And here's the calc:
I would be assuming that the cannonball would be as big as a tennis ball.
Cannonball/Tennis ball radius = 6.54 cm
Volume = 4/3*3.14*6.54*6.54*6.54 = 1171.12063 cc
Cannonballs are made up of iron, and density of iron = 7.874g/cc
Mass of the cannonball = 7.874*1171.12063 = 9221.40384 g = 9.22140384 kg
Modern cannonballs are thrown at insane speeds of 700 m/s to even 1200 m/s (supersonic - supersonic+), but I would be using the speed of a medieval cannonball, which is 106 mph = 47.38624 m/s
KE = 0.5*9.22140384*47.38624*47.38624 = 10353.1271 J
Now, to find the speed of the tennis racket/Housen, I would be using the mass of a tennis ball, which is 50 g = 0.05 kg
Speed = sqrt[(10353.1271)/(0.5*0.05)] = 643.525512 m/s
Now, it was said that Housen swung his arm round open, which would be 180deg.
Length of a tennis racket for professionals = 29 in = 0.7366 m and (-0.25 m) is 0.4866 m (deducting the grip size)
Housen's height is argued to be 1.8 m which is as tall as Sudo. The length of his arm = 48%*1.8 = 0.864 m
Just to lowball, I am assuming that Housen struck through the upper top, which is not possible, but still. So, 0.4866+0.864 = 1.3506 m
"Swung round open" means 180deg which is (2*3.14*180)/360 or 3.14. So the distance travelled in total = 3.14*1.3506 = 4.240884 m
Time taken = 4.240884/643.525512 = 0.00659007906 s
Housen's arm speed = (0.864*3.14)/0.00659007906 = 411.673362 m/s (supersonic)
Now, Ayanokoji could be faster than Housen's perception because he could place his arm before Housen's knife, giving no time to him to react. It has even been mentioned that Housen didn't want to hurt his arm.
Ayanokoji's arm length = 0.8448 m
Housen's arm length = 0.864 m
Distance = 0.8448+0.864 = 1.7088 m
Housen's perception should be supersonic or 0.00265041081 seconds.
Ayanokoji's speed = 1.7088/0.00265041081 = 644.730241 m/s (supersonic)
Also, when the anime adapts this and if it is like this, then please make a thread and mention my name too. We both would be able to argue in the CRT if any criticism happens.