I thought the '57 was the ticket on the driven tones.
As to the clean, I didn't have a real preference.
Any of the mics I have ('57, '7, 121 or the 414) all performed well.
I shurely (you see what I did there right?) wasn't inspired to run out
and buy any of the others.
I guess there's a reason the '57 is the defacto standard.
Thought their methodology was sound.
T