Quadruple 6-inch turrets in later British cruisers

If the preceding cruiser design carried sixteen 6-inch guns, how might the Crown Colony and Swiftsure classes change?

Three quadruple turrets could retain twelve guns with a saving in weight, although a four-quadruple Crown Colony is also considered.

A sixteen-gun predecessor could establish quadruple 6-inch mountings for later classes. Three such turrets would give a twelve-gun battery. A Crown Colony with four quadruple turrets is also considered before three mountings are preferred as a way to save weight. These are tentative alternative arrangements.