What is the weight system based on? The Royal Stone? if so shields are unrealistically heavy.
A primitive shield, which is round and small.. probably 24in in diameter. And it weighs 6 stones? That would be over 90lb if done in imperial pounds or 36kg if done in metric. That would be THE heaviest shield in existence.
So what stone weight is this system based on?
I own several shields, and none of them way 30+kg. I dont think any of them weigh more than 3 or 4kg.