But will that really save on memory, or is the whole figure loaded and then the parts not used sit there waisting memory? The point of this exercise would be to allow a clothing item that covers most of the body to add jus the parts it doesn't cover, and make a single figure as opposed to 2 complete figures trying to move in unison as nude and a conforming figure.

No more poke through, and additional memory savings on the second character rig would also be nice.

The biggest adantage is not accidently grabbing the wrong figure part when posing and maybe even increased render time since it would have to calculate the nakid body underneith.

By the way. Thanks for answering. ;-)

mo·nop·o·ly  [muh-nop-uh-lee]
noun, plural mo·nop·o·lies.
1. exclusive control of a commodity or service in a particular market,
or a control that makes possible the manipulation of prices