Tim Gillett wrote:... by demeaning the SM58...
Again... I don't think anyone was demeaning the SM58 (or the 57 for that matter).
My comments were:
1. Don't remove the grilles (doing so risks more harm than good)
2. If you want 57s, then sell the 58s and buy 57s.
3. Personally, if I wanted general purpose dynamics I'd look elsewhere to the 57, with my personal favourite in that role being the M201... But there are many options, some at similar prices, some cheaper, and some more expensive, all with different characteristics.
Just for the record I own one SM57s and one Beta 57... (but no SM58s)... and three M201s.