Hi Mark.  Thanks for the hand.

Not sure if I'm understanding you correctly, so I went ahead and posted a few screenshots online.

A couple of potential problems:

1. When I go into my layer shader, I'm no longer able to assign any given layer to a domain.  When I initially set it up, I created 7 layers - one for each shading domain of the chess pieces.  If a certain piece didn't have all 7 domains, I added one in the properties panel (though I didn't assign any vertices to that 'empty' shading domain.

2. You'll see that three of my pieces (king, bishop, and pawn I believe) ARE properly sharing the layered shader.  The Queen and Knight share some features.  The Rook stands alone.

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