How early twin-turret cruisers could accelerate gun growth

What changes if the Royal Navy starts designing twin-turret light cruisers during the First World War?

Britain gains much earlier experience with cruiser turrets, influences other navies, and may progress to 7.5-inch and 9.2-inch cruiser guns sooner.

The scenario gives early British light cruisers arrangements derived from five-turret capital-ship layouts, with multiple twin mountings replacing single shielded guns. Repeated work on those mountings would leave the Royal Navy far more experienced with cruiser turrets by 1918 and would influence foreign designers as well. The larger turret margin is also expected to encourage movement from six-inch weapons toward 7.5-inch and eventually 9.2-inch cruiser guns. One layout decision could therefore support industrial learning and a wider change in cruiser armament.