Sandro has never properly conveyed weight classes. I seem to remember wakatsuki from kengan only being like 220 pounds.
absolutely not. His height and weight are both 193, but its in kilograms. Thats why the announcers in the first fight were surprised, and thought it was a typo. (at least in the anime version). After his redesign i think his weight was constant, and its the same on wiki.
edit: but yeah, Sandro is notoriously bad with weights, especially when it comes to women. You would think that a guy with so much experience in sports would know better, especially since he himself is on the heavier side. I dunno whats his issue, is there some editors that make him correct the weigh of girls to be lower, cause they are afraid of some otaku not buying manga cause the girls are “fat”?