Even in the software design biz, factoring often looks easier on paper. Small-scale modules and components usually have a better reuse record in my observation

Even in the software design biz, factoring often looks easier on paper. Small-scale modules and components usually have a better reuse record in my observation because you can mix, match, change, and drop them as needed per project: you can date components without being forced to marry them. F-35 is a marriage made in Hell.