No, I am not trying to make a joke. The main concern was the hz difference and which would better overall, to just have one. By the way they are not the same. The hz are different, the sm 58 Has a hz range of 50Hz-15kHz primarly used for vocal, and the Sm 57 has 40Hz-15kHz for Instruments. But never mind the difference is just the wind screen. But I have answered my own question, now haven't I.