User blog comment:12th Supernova/Chapter 786: 10 Minutes/@comment-5398287-20150514115305/@comment-3986064-20150515094445

It depends on the users abilities rather than his size. In the New World I'm pretty certain that size isn't what matters, because if it were so, Roger with his average height would have never been able to become pirate king, nor Shanks yonko.

Ace could produce flames large enough to cover an island, so the size does not change anything for logias as long as the user is profficient in using his fruit.