Lol that's not Ragnarok.. Ragnarok has a ton of Momentum, this move does not compare to that.
And I knew it... After FS Luffy obtained a new gimmick, that flew over everyone's head. When he fought the Yokozuna guy, he stretched out his arm, while turning his hand into a G3 move at the last second, with which he got rid of the limitating speed factor, while he gained an incredible amount of additional momentum, which resulted into an attack that surpassed any G3 attack before... Same stuff we are now seeing here, except that against Kaido it's really not that easy to pull that off without getting hit yourself.
Anyway that's some very neat tech, as this type of G3 move has an exceptionally greater hit rate and much more AP, than G3 had before. Really like this kinda stuff a lot.
And the aftermath of Zoro's KoH- three dragon style still looks exactly like normal CoC coating, while a moment later his swords again begin to emit that smoke like stuff. KoH- three sword style is definitely an inferior version, that's obvious, but it also looks like a little incomplete version of CoC coating in general. Imo he's going to drop it, right after he fully mastered it and Enma fully acknowledged him or some and when Zoro finally became "King of Hell" his "three dragon style" has become his new base, stuff that's roflstomping King basically instantly.