If the ONLY thing I'm doing is listening to music then I'll sit centered between my speakers. This happens about 10% of the time when I have music on. I can enjoy the music while in the kitchen cooking (something I like to do) or reading in a chair that is comfy but outside of my right speaker, still appreciating the notes and musicality of my system. I also have broken the rule of only changing one thing at a time, and of course have "upgraded" tubes before even listening to what came stock.