I'm nearly a month to late, but just in case somebody does a search heres the secret:

The model in message 21 is correctly done, but you have to add layers as a pyramid, 2 added layers gives 1 working layer.

L1 copy 1
L2 (only one copy)
L1 Copy 2

The missing facets from layer 1 copy 1 will be covered by the facets in layer 1 copy 2. (99% of the time, poser 4 does not have a 100% face cover, but normally you can only see the missing ones on the edge of the model, as a black spot. If a facet is missing then rotate the affected bodypart, a small change is usually enough.)

Bad points, it slows down poser a bit, multi maps eats memory and it does not work on P5 sins it uses a bug in P4's render engine.

Staale