This is to report that the "World-Ready Composers" and the regular "Composers" do not behave in sync concerning the Germandbls (upper case German sharp s) in all caps. More precise: The "World-Ready Composers" do it right, while the regular "Composers" do it wrong:
Using the latter and applying all caps, the germandbls is generally substituted by SS, which shouldn't be. Modern fonts leave the decision to the typographer whether a Germandbls or SS is applied. In any case the first choice should be the Germandbls.