What's the point of GM eating a DF?
What power does that fruit posses?
Because you know, even if GM doesn't sink it would be robbed of that powers. And since a boat is in the water all the time, it would be pretty much useless for GM to have one.
Or would it be like "fast Zorro, throw GM into the air so it could use it's powers for 5 seconds".
So why bother talking about it. It's more than far-fetched. Oda would not give her a DF
"For Feanor was made the mightiest in all parts of body and mind, in valour, in endurance, in beauty, in understanding, in skill, in strength and subtlety alike, of all the Children of Illuvatar, and a bright flame was in him"