Take caution when buying your Sm-58. I won an auction on Ebay for one that was sent from St. Charles, Illinois.
Upon opening the package noticed an odor emitting from within. Within a minute my cats were climbing all over me, meowing, and pawing/batting at the packaging. (It was packaged very well! No complaints there)
When I removed the Mic it stank the most godawful stink that I've ever had noticed stunk. It was like someone boxed a friggin carp and mailed it to me.
I quickly plugged the mic in to test it and it worked perfectly. In fact, except for all the pubic hair stuck in the windscreen it was mint. However, nowdays I always make sure to buy my mics brand new or in person.
Sadly, I never did get to use that SM58 for a project. I placed it out back next to the pool to let it air out.. and a pelican flew off with it. I never saw it again.