QTR-Quadtone RIP

Thanks Mike. You are being VERY helpful.
Still have questions.
First.
For the intial Calibration page I printed, I determined that max ink to be 73%. What should I have been looking for from my measurements(w/Spyder3Print spectro) Lab or density? In other words, which should I use and what change should I see, number wise? I think I used the numbers I got from density readout. 

Next, Since I determined 73 was the point, I put that into the slider and printed out a new Calibration page to get the limit for the LK which I determined was 25% of Blk.
So the Calibration page(set at 73)was printed out I read the 100% patch for LK. The reading I got for Density was .88 and L was 42.96.
I then measured Blk and found the 25% patch read Density at .88 and L was 42.81. 
Should I have printed out a 3rd Calbration page with the slider set to 25 to detrmine the LLK as I did to get the LK?
The reason I ask is that the existing curve I used had the LK at 22.8 and LLK at 7.6 where as what I measured I got for LK was 25% but LLK was 31%, but I only printed out just the 2 calibration pages(the 1st and then 73%). Because the 31% seemed too high(compared the existing curve) I wondered if I should have printed a 3rd page for determining the % of LLK from LK. Do you follow my question?  

To answer your question as to which strip, I'm refering to the one printed out(following the instuctions you mention)after I put in the numbers from the Calibration page(which determine ink limits).

You're answering a lot Mike, please keep it up!  

--- In QuadtoneRIP@yahoogroups.com, Michael King <drmrking@...> wrote:
>
> Hi Keith,
> 
> >>So correct me if I'm wrong. Are you saying that when I called up the
> existing curve to modify, I should have removed the >>linearization first,
> 
> Yes
> 
> >>THEN added the numbers I got from the ink calibration into the Curve
> Creator box, AND THEN print that(the >>21 step wedge)out?
> 
> Yes
> 
> >>Do I then measure this new strip and put those numbers in the
> linearization boxes?
> 
> Yes
> 
> >>If the strip doesn't >>look good, what do I modify next?
> 
> Which strip?
> 
> So after the above, you effectively have a print path that prints linear L
> vs RGB value.
> Now the question is how are you going to map what you see on your monitor to
> this print path?
> Since you have a spectro and the final linerized target already printed, I
> would suggest that you create an QTR RGB ICC profile and use that to soft
> proof your images in photoshop - with preserve values checked. This gives
> luminance and "colour" soft proof.
> 
> Also you can use one of the ICCs in QuadToneRIP/icc to soft proof. This will
> give you approx luminance.
> 
> Mike