@Vongola_Boss_XI:
Power ups at Enies Lobby for Luffy, Zoro, and sanji were least believable in the series in my opinion. Zoro and Sanjis were just so out of the blue…I still don't know when they learned those techniques or why they were never used before.
Luffy is a smart tactician, so coming up with a way that made him faster and stronger was somewhat brilliant. Luffy's is more believable than Zoro's or Sanji's...
Chopper, Usopp, and Robin didn't get any stronger really...I mean Monster Point wasn't something chopper could control. Usopp and Nami got new weapons, but physically, they didn't advance to the same level as the moter trio.
But this is the brick wall which I spoke of...when he's fundamentally lacking in power and strength, I can't see him coming up with some other new technique above the gears.
Learning to control Haki in a few weeks is just about the same as "go learn to control your inner hollow and come back with super getsuga tensho hollow mask form 3.0 ftw!" imo.
Did you just call Luffy a smart tactician and imply Sanji isn't? I assume they developed the techniques in the time between Aokiji -> Enies Lobby. I think Oda could write power-ups into the story in a believable way without a time-skip. That may sound like a cop out "Oh Oda could do it," and I know that, but that's what I think. That's basically what it all comes down to.