I calibrate a 7.1 system with AVIA, and more recently with the internal test tones on my MC1, using a rat shack spl meter. I have read that the most common "mistake" is running the surrounds and sub too hot. Well, I've found that to get what I consider good sound, I have to run the surrounds and sub hot. I can see a dB or 2, but my surrounds are maybe 3-5 dB hot, and the sub a little more than that. Don't get me wrong, I love the sound that I'm getting, and I know it's personal preference, I just wish I weren't so far off of a proper calibration...it would just make me feel better . Just wondering if anyone else has had this experience and intentionally makes the same "mistake" that I am? Maybe, because I like to feel my subs and calibrate those hot, I have to compensate for the extra bass by bumping my surrounds??? I have Klipsch RS all around and twin SVS PCi 20-39 subs.