Well...I am pretty unhappy now. I recall being told the solution CSP4 offered was alpha channels. Transposer does indeed apply alpha channels for the transmapped objects. In distant, spot, or bulb renders the transmapped lashes and hair work perfectly. In skylight or indirect light they don't work at all -- they appear to be completely opaque to the light. I've turned on and off every function I can think of here. Well...I'm gonna light-lab this with a transmapped grill and a plane, and see if I learn anything.