There is no doubt in my mind that the fourth counter can negate Tezuka Zone but Tezuka will probably return it on the first hit or first few hits. Tezuka was able to return Chitose's special move on the first try so Tezuka can probably do the same with Kagerou Zutsumi.
Tezuka could just put the spin back on it, and Fuji vs Tezuka is a tough call. I am pretty sure Tezuka will win but it will be a tough match for Fuji.
Fuji was doing fine against Kirihara, Kirihara would have fainted from stamina loss if he did not lose his grip.
by spamming the move, fuji could make the ball not go to tezuka, but in the end tezuka has more skill that fuji and would win.
Therefore, though tezuka zone is defeated by spamming Kegerou Zetsumi, Fuji will still lose.
I think Tezuka would win, too. He's able to return the rest of Fuji's counters, so I don't see why not this one. Even if Fuji is able to negate the spin on Tezuka's shot, I highly doubt that the counter would be as effective. Tezuka Zone put a really strong spin on the ball, so even if Kegerou Zetsumi was able to stop it, it would probably not be as effective.
Kagerou Zutsumi can annul any spin no matter how strong. The proof is quite clear, a normal ball can't really have more spin than Shiraishi's Crazy Sidespin Smash or the Giant Habu. The problem is (For me cause I'd like to see Fuji win this one though it won't happen [Not the match not Fuji winning if so]), that even spamming Fuji is at a disadvantage. If he spams, there are no counters, no normal shots. So basicly he wont spam unless he wants to do a finishing move. And lately, they've been lowering the difficulty of getting the illusion. So Tezuka has the edge no matter what. That's why I like to continually recall that Fuji beat TZ with normal shots. (In the anime...[Dammit!:P])
I'm curious whether the Giant Habu was affected by Tezuka Zone. Kite used it against Tezuka, but by then Tezuka had already actived the Hyakuren Jitoku no Kiwami. So Idk.....
Unfortunately, the anime usually doesn't count because the manga is more accurate. It would be interesting if Tezuka and Fuji played each other in the manga, though. It would be such a good match.
Did tezuka even use tezuka zone when vsing kite? I think he only used pinnacle of hard work.
Anime is super inaccurate too, Echizen beat Tezuka with some crap smash so I would never rely on the anime.
i have to say one thing that ALL of you are missing...
Tezuka zone itsnt onely a "shot" that makes the ball come to you with certain spin on it. Its also complemented with a PREDICTION game style, thats why he put CERTAIN spin in CERTAIN shots....
With tezuka zone, he knows what its gonna do the opponent in the next move, so he can do whateva he feels like...