We know that Luffy, Zoro, and Sanji all learned haki during the timeskip but outside of haki what else did they learn?
We know Luffy gained better mastery of his fruit specially with his gears. Him now being able to just use gear 2/3 in specific part of his body making it significantly less taxing on his body. Whether it makes sense or not idk if he was able to use roc attacks post timeskip. I don’t see why not because he did gear stacking in thriller bark but he only finally used it in onigashima
While Zoro could use haki to cut iron with unsheathing attacks lions song or Rashomon pre timeskip he didn’t actually know how to actually use it consistently till his training
Outside of haki he made upgraded versions of his previous pre timeskip attacks. We know the difference isn’t just haki since he’s also still capable of using the original attack with haki
Imo it has to due with him better mastering shusui and the scar he shares with ryuma. If death by the blade actually ends up being what makes it black then giving up a part of yourself likely also has effects too. So pretty much shusui taking Zoro’s eyes made him stronger imo
For Sanji it’s a bit more simple yet confusing mainly because it’s hard to tell what techniques need haki. Like his flames 100% help him get to higher temperatures but to what extent idk
Collier mistakenly translated to collier coup but is just the most basic version
Collier shoot a stronger version of the normal collier kick translated as collier coup
Collier shoot + diable jambe. He doesn't really change the name just does it with dj again translated to coup
Collier strike a even more powerful version of collier shoot haki maybe being necessary but idk
Either way his mastery of diable jambe significantly improved with him able to handle more flames, use it without spinning, and use it on both legs
Besides that he also gained better mobility
So pretty much besides haki they mainly just mastered they’re pre timeskip power ups
- Luffy mastering g2/3 but not the stacked version of it for some reason maybe. Also a new gear but it requires haki
- Zoro mastering shusui imo but not asura for some reasons
- Sanji mastering his diable jambe flames + gaining new mobility
