I've been a fan of Mitsuki scaling to a casual Boruto.. due to his performance + seemingly doing better against Boruto than Code did anyway, but I'm pretty sure Mitsuki scaling anywhere near Boruto is controversial bc of his performance.
Anyway here's how I read the fight:
For starters, he was able to
restrain Boruto with his snakes and "forced" Boruto to use FTG to escape rather than trying to break through, seeing how Boruto was able to block Code's attack who's stronger than Jigen, so I think it's fair for him to scale to his LS. Although you could argue Boruto never tried to brute force break out of the restraints.
Boruto also uses Shinden to counter Mitsuki's attacks, and Shinden is obviously an amp stronger than his physicals (He didn't use Shinden against the Claw Grimes, though we already know Mitsuki > Claw Grimes).
Mitsuki deflects Boruto's shurikens... though you could argue it was a setup for FTG
Boruto uses Shinden to destroy his clones again, and not with normal attacks. And we know clones are weaker and less durable than the original.
Their lightning Ninjutsu clash
Before Boruto used Shinden to destroy Mitsuki's clones, he says he's gonna get a little rough and tells Mitsuki he has no time to play, which means to me that he's serious but he held back on killing intent both against him and Code.
So I think in terms of speed he doesn't scale obviously, though I think he could scale with his lightning since he clashed with a serious (no killing intent) Boruto (X, Y with Snake Lightning). But AP wise, I think likely is fair.
id like to hear everyones thoughts on this