So last night I was recording lightly picked guitar (both nylon and steel string in turn) with Beyer 130/160 in MS. The guitarist uses primarily the pads of his fingers and his sound is pretty quiet (he's used to playing amped). I like the sound I got best with the pair about two feet away, but at this distance I had my API 3124 cranked pretty much all the way. At that volume the noise floor is pretty easy to hear during the count in and as the tails decay at the end of the song (at least on Sony headphones - which tend to be pretty bright). The recorded level is less than -60 dBfs. With this song, the picking is pretty constant and the noise is not audible (to my ears) during the song. So this is going to be pretty easy to take care of. But I'd like to know what strategies you have employed in more difficult situations. In general, I'm excited about the sound I'm getting, so I'm not too interested in, say, buying a new preamp (though any suggestions are welcome). Mostly in how people deal with this during mixing. Noise reduction software? Downward expansion? Should it be handled in individual tracks or left for mastering?