I actually never said they were the best sounding mic though. In that I actually agree. However, if you can not get a good sound out of an sm58 on any singer, than something else in the system needs to change as well. I run a pro audio company and the reasons you listed are the reasons why we stock so many sm58's. I actually prefer them to a beta 58 myself. I really like the way beta57a's sound, but it has to be the "a" version. The problem with a lot of the other offerings from other copmpanies is that there mics may sound better on certain sources, but often can be very troublesome if you try and just throw them out there. I certainly agree that if the mic is for you personally, give some other mics a try. If you are constantly doing sound for thes 4+ band shows though, an arsenal of 58's and 57's can be invaluable. I really hate it when people talk badly about FOH guys and how they just throw anything out there. It's not that they don't know what sounds good or know about any other tools. It is important to consider that when you are running a live show, especially with multiple acts, that there may not be time to have little mic shootouts. In the live business, especially with a rental company, time is money. If you take too long, you lose business. It would be great to be able to really take the time to do all the little things, but more often than not, that time just isn't there. To me it is far more important to spend 20 minutes tuning the PA, than to spend 20 minutes testing different mics and re ringing the monitors around those variables. I certainly don't hesitate to use other mics if they are available and requested, but other than that, you will get an sm58 or
a beta 57a if you play on one of my stages. In the end, by the time a little EQ from a Midas hits it, you won't notice a difference until you plug in a Neumann 105 or something of similar quality. Is this the right way to do things? Not necessarily. Is this the practical and efficient way of doing things? Most likely. Dealing with live venues combined with multiple bands, limited time constraints, and flaky promoters most often means a combination of compromises. in the studio, it's a whiole different story