AFAIK the battitori are employed directly from the Consorzio, the trade association which owns the brand. So what's written in the _disciplinare_ is the expect

AFAIK the battitori are employed directly from the Consorzio, the trade association which owns the brand. So what's written in the _disciplinare_ is the expectation that the wheel is flawless and that the experts will validate it at certain times. The details of how the validation is performed is vague, it mentions using the hammer but doesn't specify stuff like "it sounds X".