QTR-Quadtone RIP

I'm having trouble linearizing an 1160 with piezotone inks. I get the
Ink Pattern printed well and have a limit to set in the curve I am
making. The question is: how to determine the values I should enter
for the three grey dilutions? I'm on a Mac..
	
	When I try to linearize based on an included curve for piezo inks I
get an error regarding the densities not constantly increasing. The
readings I get from my eyeOne do seem to be increasing throughout the
scale, sometimes only by .1, but they do increase. This error problem
is why I am trying to build my own curve from scratch.
	
	I measured the max density patches on the other three inks. The
values are in L and converted to density. Do I use these numbers to
calculate the entries for my curve? And if so how? Or am I totally off
base. Any help would be appreciated.
	
	
	
btw, I have worked through this process before with the freeware Mac
program on 10.1 and 10.2. I stupidly threw out my old version and the
curves that had worked so well when I installed the latest version to
check it out. So I have some experience and have achieved success in
the past. 


Thanks in Advance

Mark Stracke