Good answer

Haha… everyone hates my answer on this, but it’s the truth. People use nothing but 57s often on guitars for a reason, and it’s not because they don’t want to experiment or can’t afford other mics etc. it’s because it’s just never nearly as focused or clear, or tight, or the same transient response you get with a single mic. I challenge anyone to send me a clip of a well placed 57 only, and then another with say, a 57 a ribbon or even a 421, with both clips perfectly volume matched and tell me why the two mic version is better. Sure, it might sound better on its OWN( still doubtful), but not often in a mix. On that note, sometimes two or 3 mics is needed, but I think this generally applies to experienced engineers who know exactly what they are looking for and have a clear mindful reason for why they are doing it. Often times at our level, guys just “wanna do it because”. And I mean there is absolutely nothing wrong with that, no doubt. I’m just saying, the two mic combo will never be as punchy, as FOCUSED( for sure) or have the same transient response as a single well placed 57. That’s why when I do it personally, I keep the second mic much much lower In a mix. I have a great monitoring setup as well, and the things I couldn’t hear before and didn’t quite understand are much more apparent to me now, and is now clear to me. The mics will never be perfectly In phase, which is why you get the results you do ( less transient response and clarity, focus etc). And sometimes, that can be cool! It’s just not usually for me in the music I like to play and mix.