Digital BW, The Print

>So I have a pure
> carbon quadtone -- black, dark gray, medium gray and light gray,
> plus two single color toners. 

Roy,

whose carbons and whose toners are these? 

I guess we can't settle this without everyone in the same viewing room with lots of 
prints in front of us, but here is the question: Is there any disadvantage to using a 
toner vs blending between single-hue inksets? Obviously the toner will give you the 
bigger cool-to-sepia range. But aren't there trade-offs? .... crossovers?...  overinking 
in the shadows?...  funny dots in the highlights?....

Just a skeptic -

Antonis