From: Stillwater, OK, United States
I don't think it is modeled. You could adjust it, but since Fuso and Ise both have 12 inch belts in WitP, and Settsu is only a few years older, I don't see why she should be downgraded.
Part of the reasoning for thinning of armor is speed. Nagato has lighter armor, but is much faster. Tosa would have had lighter armor, but also have been faster. So really, I would just go with the standard 12 inch belt, but for uniformity instead of 305mm you might want to use 300mm.
Designer of War Plan Orange
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