So, most of the time I just use 1 57 on cabs, but sometimes Ill throw up either a cascade fathead or an akg c214 as well. I was thinking about selling the 214 and seeing if I could get something that is a better compliment to an sm57 on a cab. I was thinking about building a u87 clone. I know they used sm57 u87 combo on soad toxicity. U87 clone could also sound good on vocals, acoustics, and stuff, or maybe I should consider an md421?