I understand your caution, however I understand the theory behind OP-Amps, theory can only go so far which is why I’m building a circuit on a breadboard now. I should clarify that the basic rules for ideal op-amps I have a grasp of, although I can never seem to remember these rules. For example, I have the formulas for a BJT and MOSFET transistors memorized because I spent a lot of time reading and using them in practical applications. Op-amps I have spent a lot of time reading but no time building circuits, which is essentially what I am trying to do now. I have a degree in EE, and at this point this is one of the basic components that wasn’t covered much in university, nor did reading or doing practice problems help. I’m very much a hands on learner, I can read formulas and equations all day but if I don’t apply what I learned I’ll forget it after several days unless I repeatedly practice.