Hmmm yea, I'll just combine the posts about Nami:
Increase in weather knowledge = more capabilities for Clima Tact.
More capabilities = Clima Tact may not be updated enough.
Clima Tact work on Dials = Get some dials, or steal
, since she's on a sky island.
And I've heard a hilarious but true saying on why Sanji's sent there to be chased by okamas: All that running would definitely strengthen Sanji's legs in some way or another lol