(are no rules)
And on that note, although it's a far more common combo, I finally had the chance to pair an MD421 with a 57 miking up my cab the other day, and SWEET JESUS did it rule - I really have no idea how anyone could use just a 57 when the 421 just fills out SO much of the low- to mid-mids (yes, I said mid-mids, eat me

); I know people have gotten great results out of one 57, so I'm sure I just need to get better, but I did the "have someone play at low volume while you sweep the mic with headphones on" routine and got what I thought was a pretty killer 57 tone, until I added in the 421 and holy rays of enlightenment shone down upon me.
Just thought I'd share.

Clips will come when I finish the project!