Carrara doesn't have a "mirror" function? In lightwave I just mirror and then join polys to create symetrical stuff, I don't model symetrical I have to manually do some things but the mirror function works and cuts down on some time. Not really a huge deal to me. When I do model I model step by step the old fashion way and don't really use all the bells and wistles now available. Old school modeling that takes tons of time.