Greetings,
Just quickly, weapon mastery edge allows you to select a particular weapon in which you are a master.
However it states nothing about such selected weapon
being ... your fist, hence weapon mastery unarmed combat.
Now I know that there is another edge called Martial Artist, but that just deals with extra attack feature.
What would you say about allowing a player to select weapon mastery unarmed combat and allow the bonuses related to it.
Regards