I would like to pose a WS&IM Rules question to all Youplay's Captains

On Chainshot, the WS&IM Advanced rules say simply:
Rule VIII.B.2.d The British may never fire chainshot.
This may interpreted in three ways:
1) a moral imperative: British crew will never fire Chainshot. So, even if they capture a foreign ship, they will not fire Chainshot. On the other hand, foreign crews can board a British ship and fire Chainshot from it.
2) a practical impossibility: British ships do not have Chainshot ammo, so they cannot fire it. British crews that capture foreign ships can fire Chainshot from those ship (they are not morally obliged not to do it or not capable to do it). On the other hand, foreign crews that capture British ship cannot fire Chainshot from them since there is no Chainshot ammo onboard.
3) a combination of the above two:
British ship do not have Chainshot ammo and British crew will never fire it anyway (not trained to do so or they do not consider worthy to do it or any other reason).
In this case, British crews will never fire Chainshot.
Foreign crews that capture a British ship will not fire it either because they will not find Chainshot ammo onboard.
What do you think we should apply?(the current rule implementation is 1.)
I think your correction (3) is right.