The thing is, if you give yourself time to adjust, you're just testing one remembered perception against another. You're not really comparing the speakers (says the person who just did exactly what he's advising against...)
Ahh, that's why we are disagreeing with each other. I am not talking about comparing the two speakers at this particular point. I am talking about taking some time to get used to listening to them, play some different types of music (good sources), evaluate over time. This way you will get to hear a lot of different types of music, different sounds, different frequencies. In short, extend the test drive so you get a good feel for them.
Sorry to confuse.