The band relocated to Las Vegas, signed to I.R.S., and released Ultraprophets of Thee Psykick Revolution in 1989. Arguably their finest work, it featured another small-time hit in "Stupid Kids", and the caustic, satirical "Richard Nixon" earned critical attention as well. But the strange, though appealing, record seemed a bit out of step with the top college radio bands that year, and it sunk with little notice.
Christmas recorded Vortex in 1991 but could not immediately find a label for it. In the interim, Cox and Cudahy swapped tongue-in-cheek-psychedelia for tongue-in-cheek lounge music and formed the still quirky, but far more accessible and successful Combustible Edison together with Peter Dixon. When finally released in 1993, the bored-sounding Vortex made barely a ripple.