I have seen a couple of recordists [?] place their microphones [stereo bar] on the floor in front of an elevated stage at about stage floor level, slightly to stage left to record student recitals at the school where I work. They have done this to be visually unobtrusive. Is this a common practice? I have always elevated my mics but sometimes feel a bit in the way placing Manfrotto stands in front of the stage. Has anyone else seen this 'low mic' technique. Any comments on it's effect on the recorded sound?