The strong versus weak dichotomy is all about how the sub-aspect presents within the self. The 1st and 2nd attitudes are both strong. The 3rd and 4th attitudes are weak.
The confident and flexible attitude both sufficiently focus on their own understanding and opinions of the aspect – having no trouble relaying information or directives.
The insecure and unconcerned attitudes are both insufficient at prolonged focus and lack heavy opinions or abilities to relay information and directives.
1+2 vs. 3+4