ok, ive seen it twice, in the primus live DVD (halucinogenetics) and once in a blues gig. the singer used an harmonica mic, whiche distorted and sounded kinda cool. since im needing to distort my vocals live i did a search in some live sound forums, cause the feedback huge, and someone recomend me a harmonica mic for singing. does anybody knows anything about this? is the mic that distorts? or is that the frequency response is SO bad that seems like distortion? also do you have serious feedback issues with it? thancks for any input!