After our discussion last night, I went back and took the LAB readings from the last and best steptest (the text file is above) and I put the readings into the spread sheet that richard provided to convert them into densities.
These values I entered into Richards curve creater software and inserted the resulting line into the grey curve as instructed.
http://i1337.photobucket.com/albums/o680/babaky/Platinum/Correction%20curve%20copy_zpshwzxhcgj.jpg
#Sandy First trial on normal mixture
PRINTER=Quad3880
GRAPH_CURVE=YES
N_OF_INKS=8
DEFAULT_INK_LIMIT=100
LIMIT_K=14.2
LIMIT_C=19
LIMIT_M=1
LIMIT_Y=23.75
LIMIT_LC=1
LIMIT_LM=1
LIMIT_LK=33.25
LIMIT_LLK=1
GRAY_HIGHLIGHT=1
GRAY_SHADOW=1
GRAY_GAMMA=1
CURVE_K="0;0 5;12.1273377355677 10;17.9420599219183 15;22.5975357063362 20;26.1788328148605 25;28.6197308614445 30;31.491219038554 35;34.9230636834463 40;38.1144574918807 45;41.355552057678 50;44.6767104870419 55;48.5972591869956 60;52.4602889487758 65;56.2104965891297 70;59.8668141688948 75;63.8748837892236 80;69.1166215626693 85;73.9407497465317 90;79.2202447316488 95;86.094885007615 100;100 "
COPY_CURVE_C=K
COPY_CURVE_M=K
COPY_CURVE_Y=K
COPY_CURVE_LC=K
COPY_CURVE_LM=K
COPY_CURVE_LK=K
COPY_CURVE_LLK=K
Next I printed the negative and printed it, with a stoufller next to it. In the photo it is a bit dark, but in reality I can see the exposure time is spot on as I can see it is only the first step which is pure black.
http://i1337.photobucket.com/albums/o680/babaky/Platinum/sandy8withoutwell2_zps6v9trqkk.jpg
The gradations in the grey look great, the bes I have had so far, but when I scanned it in and read the values they are
0 4
5 18
10 31
20 52
30 69
40 78
50 86
60 90
70 94
80 96
90 97
95 97
100 97
As the scan looked a little dark I also read the lab values using the colormunki below
http://i1337.photobucket.com/albums/o680/babaky/Platinum/Newlab_zpshkxtb5pt.jpg
Suggestions as where to go from here???
Babak