I record a small group live in my basement and use a shure sm58 for lead vocals. I've noticed that it's not nearly as "loud" as other dynamics I use...meaning, I have to turn the gain and trim up (and then get clipping when things rock) to get it to come through near 0. The question is...can the sm58 break, get old, wear out, etc? I bought my lead one used and it shows lots of wear, can it be damaged enough to be less "powerful"? How would I tell if something is wrong with my 58? Thanks!