Todd, tweeters dispersion patterns are typically the same above or below ear level, but in a two or three way, The problem is that that farther your other drivers are off, the more their dispersion patterns and frequency response is off also, so if the tweeter is designed to be on top and is below, your frequency curves change even more on the drivers below. For that reason, most recommend to keep the tweeter at or slightly above, but overall it is a rule of thumb rather that a law, based on the speaker that you are using. If I recall, the Stratus mini, the tweeter is on bottom, so that theory wouldn't work. Don't forget, sometimes a little tilt either way makes a world of difference.