QTR-Quadtone RIP

OK, I am getting close.  Here are the values I arrived at which
produce a good dmax (L* = 16.62) and have a* and b* quite similar to
the Cone curve.  There is still a bit of a problem with the b* in the
shadow area (goes up to 1.5, Cone is 0.2) and in the highlight area
(goes down to -1.5, Cone is -0.5), but getting close.  For anyone who
is interested, here are my values:

Default ink limit - 55
Black boost - blank

Black 100, 40 (Density, Limit)
Cyan 28, 35
Magenta 6.8, 40
Yellow 1.5 45
Light Cyan 17, 37
Light Magenta 3, 40
Light Black 45, 40

Highlight 10
Shadow 10
Overlap 100
Gamma 1

Plug them in and see what the curves look like.

Comments and suggestions welcome.

--John