Hmmm, iSchwartz (and the others),
actually, I did not exactly mean phase cancellation but I was not too clear or detailed in my post, sorry. But in my opinion that definitely applies, or you have to take into consideration if you're using a width processor trying to liven up a single track (be it an effect sound or a synth, vocal etc). Of course it'd be somewhat (I guess an impossible) coincidence if you'd get two different white noise recordings to cancel each other out as they're random.
I too pan my hats and shakers for eg. a little apart from each other, and frequency-overlapping synths might find more space, too, when separating them in the stereo field a little.
What I kinda mixed up in my thoughts and the post was the phase cancellation and mono-compatibility issue and just losing the left-right effect of my tracks in a mono system. Fluffy and lush pads or big leads often get their lushness or big sound from the reverb and delays (and eq, comp,...) and when monoed the track often becomes bland since all the "3d" space is now tucked in the center. Now that I think of it maybe I have had a reverb plug back in the day that does cheap tricks to widen stuff because I've even heard the reverb almost vanish when monoed. Anyway, like I said, for (mono) club play it doesn't really make too much sence to be anal about making that whoosh sweep for eg. left>right because it won't be heard that way. I know you guys weren't really talking about that, I just brought it up because I've experienced that myself.
Like the engineers say, it can be argued that the benefit of the mono club system might be greater than my grief of losing the full stereo field as so few people in a club would hear that anyway, and the loudness and bass that's felt and not only heard also makes you hear not so accurately (+ vodka or the extra chemicals some clubbers enjoy...). I don't know, but my (maybe a stupid) analogy is that I make my stuff stereo, it'd be nice if it was replayed and heard in stereo (in the home cd players and radios as well as clubs). When I've had the choice, I've at least monitored stuff in stereo when performing so I can fool myself to forget that the room hears mono... 😉
PowerMac G5 2,5GHz Quad Mac OS X (10.4.7) Motu 2408mk3+24i/o, AMT8