Even with Vergo's PTSD freshly etched upon memory, Sanji will be dealing some heavy blows to commanders this arc
Chrono, you think the RS adds durability? Sanji talked about the cape shield and that's the only thing that actually adds durability, but the actual suit is just an elastic piece of cloth that itself is durable but doesnn't add to Sanji's total durability. Every punch and kick would be felt by Sanji.
As you se here the BMP are talking about the "steel skin", they're not talking about any suit as being any problem when they fire consecutive rounds. It is their metal skin that protects them. The suit doesn't confer any hardness at all. It doesn't provide protection outside of the cape
King was essentially doing a perforating attack that Sanji tanked with his own durability.