Its possible for Sanji to hurt Kaido with concentrated Diable Jambe or HM
- His concetrated DJ made the Kraken have the most "in pain" face out of all the attacks it took.
- Secondly, after Judge grabbed his DJ leg and threw him. Sanji switched to concentrated DJ....
This shows that Sanji thought concentrated DJ has a better time hurting the RS than normal DJ.
Is this why Judge used wall even though before he could handle normal DJ easily....
Sanji has only used concentrated DJ when he remembers his bad memories. Such as Kamabaka and his childhood. This also allowed him to transform into his HM mode as well.
We know Sanji's emotions allow his fire to increase.
Kiku losing an arm is the perfect time for Sanji to land a hot attack on Kaido. Because lets not forget Sanji wanted to kill Arlong for what he did to Nami.
I see either Sanji going to the roof and hurting Kaido in someway, or King stopping him from getting to the roof.