I don't know if destroyer-sized and ironing board chest is best, but mega-colossal boobs are unappealing I'll give you that.
Well this adult Nagato's size is similar to Shinano's. I do not really understand why Nagato and Mutsu had to be destroyer-size, specially when every other japanese battleships-battlecrusiers are not small. The same can be said about Queen Elizabeth-class shipgirls... But i like them as they are now.