Not ideal, but it seems to work well for what I'm doing: two cardioid mics (cheaper ones that I'm not too worried about getting kicked around--Nak 300, AT 3031, or AKG C1000) basically on the ground (away from wedges if possible), on both sides of the stage, pointed at amps. There usually is not space, or approval, for running a real stand in the center, so this is what I've come up with. But I like it because it minimizes the drums in the middle. Mixed in with a board feed and an audience pair, it usually adds the right stuff.