As for the Moog Offset UCA bushings, there is a company that makes them (offset) in urethane (this info has been on Moparts before... I think they come from Australia???... I'm pretty sure Mopar Action's Richard Ehrenberg exposed them to us). You might consider them for a slight better peformance whereas they won't have deflection such as the rubber Moog bushings have (but it won't be noticable unless you'd be in serious competition and wanting that very last additional performance edge).