Sometimes when stealth taping (with cards clipped to shirt collar), I end up with very "unbalanced" recordings. For example, with drums/guitar/bass heavily favoring the left channel and vocals almost entirely in the right channel. I assume this is the result of the sound reaching my left mic before the right one, and with the vocals (in this case coming off the right channel PA monitor) reaching my right mic first. This results in a mess that I cannot correct. If all instruments favored a single channel, that's easy enough to correct by delaying the favored channel by few samples, thereby centering everything in the middle of the sound field. The room in question has the stage set up along the long wall of the rectangular shaped room. The left and right channel PA monitors are therefore some distance apart. The room could really use a center fill channel, but I'm not holding my breath that will ever happen.
Sometimes in this room, I make a nice, well balanced recording, but other times, I end up with an unbalanced mess like this. Is there anything I can do to prevent this? I try to stand in the dead center of the room, as far back as possible. Should I try to orient my card mics so they're both facing straight ahead, or should I try to toe them outward in a more ORTF-like configuration?
Any other suggestions? I don't suppose there is anything I can do in post???