User blog comment:Gregroden93/Did Ace use his Mera Mera no Mi powers to its full potential/@comment-98.213.234.250-20120902211636

i personally think all devil fruits have gears so i don't think he did

btw the gears would go like this

gear 2nd= blue fire

gear 3rd= purple

and gear 4th(2nd +3rd)=white