User blog:Amabo Kcorb/Does anyone know the mechanics of the skill, Dig?

So I saw somewhere that Dig can get Small Medals, and was wondering how the odds for that worked. Besides that method, it seems that the main renewable methods of grinding for Small Medals would be Box Girls and Labyrinth of Chaos, but unlike those two Dig isn't given any clear information on how consistent it is.

Does anyone know Dig mechanics beyond "it has a chance of giving an item"?