I agree, stick with proven principles and conventional construction methods.
Since one of your goals is solid floors with fewer squeaks, try engineered I-joists for your floor joists. They are very straight, and the span charts typically use L/480 deflection criteria which result in a solid floor that is less bouncy than L/360 Code requirements.
Since one of your goals is solid floors with fewer squeaks, try engineered I-joists for your floor joists. They are very straight, and the span charts typically use L/480 deflection criteria which result in a solid floor that is less bouncy than L/360 Code requirements.