This literally didn't answer anything I said, but if anything, Silent Killing is extremely overrated.
Sorry if i misunderstood you the beginning of your post was a bit confusing, i don't see what i didnt answer.
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In all those panels he has his sharingan active, which makes a difference, the sharingan precognition inserts delayed due to the mist, but still works, thats why Kakashi was able to react to Zabuza.
Multiple times he's shown that when he comes up close to attack, he's somewhat perceivable. That's why Kakashi was able to block his punch, albeit not effectively. He attributed that to the hindrance to his eyesight slowing his reactions. If your reactions are fast enough, then that kind of hindrance isn't going to effect you as bad as it did Kakashi let alone bad enough to actually be killed off in one hit like some fodder. B's reactions>>Part 1 Kakashi's. B's speed as a whole>>Part 1 Kakashi's. He'd block all of Zabuza's attacks, but easier.
Bees eyesight would be restricted, too, which means his reactions are also slowed down.
Ofc he would be able to block Zabuzas punches or slashes much similar like Kakashi, maybe a bit better, but due to the lack of sharingan his eyesight is worse than part 1 Kakashis in the mist.
if he gets attacked from behind and in front, silently, i don't see him reacting fast enough, ofc only due to the sick mist.
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When Zabuza was about to kill Tazuna, Sakura and Tazuna noticed him. If he goes for the kill, he'll be noticed, and he'll be countered by B.
They noticed him in the last moment, but i agree, he becomes visible and hearable at close range when he runs at his targets, but this was not his silent killing.
This is his silent killing, imo.
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A double clone feint combined with silent killing and even killer bees reactions are outmaneuvered.
Not really. Water Clones are only 10% of his strength, which is already nothing compared to B, and B uses Raiton. One hit from his Vibrato Blade and it'd be over. If he doesn't want to enter a stance where it'd be hard to react to Zabuza's incoming attack, he'd just toss a Raiton Pencil at the Water Clone to kill it, leaving him in a position good enough to counter Zabuza's attack, and then Raiton streaming lets him cut through his Kubikiribocho and end Zabuza's life.
The clones are only for tricking, confusing him. Bee would strike them, but when he attacks them he is vulnerable from behind, he would notice Zabuzas silent killing to late after he is fooled by a clone feint.
He won't throw a ration pencil at a clone who will appear directly in front of him.
Bee is forced to use close combat and strikes, which makes him prone to a sneak attack.
Not in the Mist. It's literally the same. Mist is made from his chakra, so all Kakashi sees is a thick blanket of Zabuza's chakra
Then there was no point in showing that eye off
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ofc the sharingan works in the mist, thats why zabuza closed his eyes, being save from illusions
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Kakashi didn't use any of that to combat the mist, so I'm not seeing why they'd need it either. Kakashi doesn't have some magic sixth sense that they lack, nor was his sense of smell even a factor against Zabuza.
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Smell doesn't help there since it has no scent.
Kakashi used the sharingan and his doges.
He has good senses, but in the Zabuza fight it wasn't shown. In gaiden he sniffed out some iwa jonins and located the invisible one with only vibrations in air, thats why he was able to save obito, sacrificing his left eye.
He even smelled that the bloody kunai the invisible iwa jonin used was thrown away by him shortly after he sliced Kakashis left eye.
The link you posted clearly is focused on the active sharingan before Kakashi defends himself from that shurikans.
He heard them before he turned his head around, so his senses definitely played a role.
Sharingan is useless, Kakashi didn't need clones when he fought Zabuza.
covered above
He didn't need clones, but summons.
The use of clones would help one against Zabuzas clone feints, but killer bee lacks both summons and clones, and his normal eye sight is worse than the sharingan eye sight.
Mist renders sharingan not completely useless.
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Kakashi even closed his normal eye only showing the sharingan off, proves that the sharingan works.
He was forced to his knees by a Chidori, which would probably do worse than a Raiton Clone, but still Shunshin'd that far away after Jugo tried to attack him, and if anything, Kakashi's attack is slower since it's harder to rise from underground and attack than it is to come from above. B easily evades, or instead of evading he just counters.
Thats debatable, but i think at least it would immobilize him for a short time, i doubt bee would tank it without getting paralyzed.
The distance between the target is much shorter jugo needed to jump high and then was pulled down by gravity, this are 2 steps.
kakashi breaks out of the earth directly under bee is faster imo.
Wasn't Itachi reacting to Sharingan Kakashi's underground attacks anyway?
yes because of the sharingan precognition and due to not being paralyzed.