Zaikesman, Given your clarification, I believe we are now on the same page, or at least close to it. My posts above refer to quick A/Bs that involve rapid switching as is the case in some double blind tests. Repeated short-term A/B tests in which you have at least a few minutes with each option are extremely important to delineate the differences. I have performed hundreds of such tests while refining my audio system. During these short-term tests, my powers of discrimination and analysis usually play a primary role and my affective nature a secondary one (unless the difference that emerges involves feeling). However, after this analysis is somewhat definitive, I do long-term testing (leave a component in a few days and then remove) in which the roles are usually switched: enjoyment level and feeling become primary while analysis takes a back seat.