To go back on topic.
Do you guys think Slur used to be fat lol?
What's got me thinking is his dialogue in the JAA arc.
First he says he tossed out his picture because he looked bad in it
Then he says he feels nervous, and Gaku starts talking about new haircuts, thus imo indicating a physical change.
It would make sense that Slur now wants to showcase his new physique and be nervous about it cuz they remember him as fat.
Again, it's stated he's feeling nervous
What's more, the first thing Uda asks him when he sees him is if he lost weight
which imo is also a clue that he used to be at least overweight or something.
Then he teases Sakamoto about how he became porky while grinning, as in saying, look at us now, totally different, you are fat and I have peak physique.
Which is imo also the reason why he wants to delete his old self, and go by a new name and identity
It would also make sense imo, cuz as a student he left no impression or anything, thus probably wasn't gifted or in shape.
And it'd be a nice parallel with Sakamoto. Sakamoto who was the best, the peak, got lazy, fat, slow, out of shape, while Uzuki, who was fat, out of shape, etc, got ripped, in shape, hit the peak physique, etc.
I think it'd be a fun little detail.
I don't put too much stock into this though, just think it's something that can be a fun parallel.