Could carrier limits accelerate a dual-purpose 6-inch gun?

Would alternative treaty rules put 10-inch guns on carriers?

Probably not: a 6-inch limit is more plausible, and it could encourage an earlier dual-purpose 6-inch gun for carriers and cruisers.

A treaty system could limit carriers to the armament allowed for unlimited lower-category ships rather than give them 10-inch guns. A 6.1-inch ceiling would prevent the carrier from competing with the new station cruiser as a surface combatant. It would also create demand for a 6-inch weapon capable of both surface and anti-aircraft fire. An earlier dual-purpose system could influence later cruiser, anti-aircraft, and carrier design well beyond the treaty conference itself.