Digital BW, The Print

Using QTR 2.1d on the 4000, what are the recommended cool - neutral -
warm - sepia 
curves to use with Epson Luster paper?  

Although there are no curves with 2.1d listed specifically for
Luster, I've seen 
'ISmoothPearl' curves recommended for use with Luster on Roy
Harrington's QTR webpage.
However the 'ISmoothPearl' curves are described as "carbon",
"neutral", "sepia".  

Is "carbon" the equivalent of "warm"?

And what should I use for "cool"?

May thanks,

Philip