That's if he cuts him. It took Yachiru a few tries and Tsukishima does not have her instincts.
The only thing we know is that Isane wouldn't react in the same way. The assumption that you need to be Kenpachi or Yachiru to have a shot at tagging V is ridiculous. Reaction time was stressed by V himself, and can clearly make up for a tendency if need be. Besides, things like killing intent and Reiatsu natures have been stressed for a long time. I see no reason why a solid Captain level wouldn't be able to replicate/exceed what Yachiru did.
Not only that but it only worked be abuse her shikai has extended range, also something Tsukishima doesn't have.
V barely avoided a punch from a little girl arm. If she had her sword at the time she'd have stabbed him in the head. Tsukishima's reach is more than enough, and he has more feats in terms of base stats.
At the same time, Yachiru is taking a Stern Ritter alone whereas many captains have double teamed them, either with their Vice Captain or in Mask and Bambietta's case 2 captains.
And there's no reason to equate V with Mask, Bambietta, or anyone else who actually has more than just a good ability. V's ability is the only impressive thing about him, everything else is just awful.
Also Renji/Rukia proved that they are stronger than many of the the Captains. They are an exception in that they had the best training, but Yachiru is the Vice Captain of the strongest squad.
I certainly hope you aren't implying that Yachiru is anywhere near Rukia and Renji.
The 5th seat beat a Vice Captain and the 3rd seat is nearly Captain level with a bankai.
Ikkaku is mediocre as far as I'm concerned. But yeah, the 11th has some solid lower seats for sure.
Yachiru should easily be captain level
Based on what? SR are clearly not equal, and V in particular is so wildly unimpressive that there's no reason to hype Yachiru up by large power gaps because she trashed him (seemingly anyway).
and I always thought she would be the strongest Vice Captain.
Which puts her above Tsukishima?
Also this ability is arguably the most hax one so far. He removes the very memory of his existence and his physical existence at will. That's incredibly broken.
And yet he doesn't use it well. Even if he does, his attacks are pathetic, giving his opponent an opportunity to kill him.
I'm sure all SR are at Captain level based on the 12th division's report. That, however is a huge range and by no means places Guenhael as equal to someone who forced Byakuya to his limits.
The only way i see V winning is if he is bloodlusted, then he could win this by simply using his third power, first power, and second power in that order ad infinitum.