Amazing!
In the game mechanics it might be like that:
Incoming damage / weapon ignore armor percentage = damage to the t2 layer / same ignore armor = damage to t1 / ignore = hp damage.
So at first it looks meaningfull and at second it would lead to a reasonable weapon rebalance and more difference between weapon types. For a not so big cost in develop (like new DLC maybe?)
Twho years waiting for that!)
Upd.
Furs and bones can be the lowcost t2 and t3 layers.
Maybe it will be complicated to implement, but it will grants awesome gameplay depth. I ready to donate for this.
