QTR-Quadtone RIP

I, too struggled with the QTR linearization process.  My approach was to 
try to get the best density measurements by modifying the ink setup and 
grey curve tabs, but with the linearization array clear.  This took many 
iterations.  Eventually, when I thought that the measured density curve 
was close to the ideal density curve (I plotted both in Excel for 
comparison purposes), I linearized, printed the step tablet again and 
checked the new, linearized density measurements to confirm (or 
otherwise) that my final curve was good enough.

I made the assumption that it was incorrect to re-linearize the 
linearized curve during the many iterations and so only linearized once 
as the final step in curve creation..  I hope this was the correct 
assumption.

Cheers,

Terence Lowe.