QTR-Quadtone RIP

When using Linearize-Data figures in the Curve Creator table, the 
curves get "re-shaped" so that the output gets more linear.
Yet at times, the linearity remains debatable.

Clearing the Linearization Table after, and inputting the readings of 
the already-once linearized stepwedge should work as an iterative 
linearization since the curve are built with the first linearization 
and the second linearization should refine the output. Right or wrong ?

I know the Create-Icc should deliver this but I'm trying to really get 
the best possible linearization before the profile building, and this 
can take 2 or 3 iterations in my opinion.

Olivier