I like the SLO with V30s and Greenbacks. Never tried it with an EV, JBL, or any Eminence other than a Tonker, but I really didn't like the SLO with the Tonker by itself (though not bad blended with another speaker). SLO sounded OK with whatever speakers are in the DV Mark cabs, too, but the EVH 4x12 with Greenbacks that was sitting right next to it sounded much warmer and fuller to me. But the Soldano cabs are front loaded, right? Not sure I'd be crazy about a V30 in a front loaded cab, though the Bogner cubes make it sound great.