How 9.2-inch Courageous-class cruisers reshape Washington

How would the Washington Naval Treaty change if the Courageous class remained 9.2-inch cruisers?

The treaty would likely need a distinct large-cruiser category or tighter tonnage rules to prevent a major loophole.

Ships of their displacement and armament would expose a loophole if unlimited numbers remained outside capital-ship tonnage. Negotiators might respond with a separate large-cruiser definition or extend tonnage controls upward from the 10,000-ton cruiser limit.