Don Durito
Legend
That's sort of already implied by the rules already though. There's just not much point spelling it out because it would be another thing to track that doesn't do anything.See, now this I agree would be the mechanics providing a tiny kernel of information to guide the narrative. Makes my simulationist heart go pitter pat. ((Heh, you should see my preferred ship combat rules for D&D ((Broadsides!!)) - no one will play with me because it's FAR too into the sim weeds and no one is that interested))
But, again, that's my point. You have to ADD that to D&D in order to get it to have any sort of sim base. That's great for your game. And I heartily approve. But, we're not discussing your game. We're not discussing my game. We're discussing the game as presented.
To make it meaningful you would need to have some rule by which you check to see if you're shield is actually broken.