Meant CIS. Zoro acknowledged the surprising strength of the voo doo doll, then instead of using Haki on his body he took damage to hype up Hawkins.
Could also argue that he took damage to get treated by Kiku, which led to them teaming up to rescue Tama and go to Oden castle
Sanji mentioned how kicking Vergo was like kicking metal. So it was CIS to hype up Vergo.
And if Sanji used hardening on his legs, it doesn't really speak well to the strength of it. IIRC, Judge wasn't using a named attack or anything, just a stab, and Sanji was brought to his knees and from the manga panel it looked like he was shaking or something.
My main point is that Oda will make characters forget their abilities for the sake of plot or hyping up characters.