Okay, folks... I've gone brain-dead.

Duplicate with Symmetry: There's a procedure for combining the resulting halves, and I've killed Carrara dead more than once trying to get it to put the two halves into the same "object" so I can get them into the modelling room at the same time. Anyone know what I'm doing wrong?

I'm going to get off my soapbox now, and let you get back to your day