Digital BW, The Print

Today was my first attempt to delve a litle deeper into QTR and to try to create a 
curve.  I want to be able to do this so that at a minimum I don't have to bother Roy, 
Carl or others if I decide to try a different paper.  However, as a result I have a bunch 
of questions on which I would appreciate some help.  

To put a toe in the water I did the following:  I duplicated the EEM_2200-cool Ink 
Descriptor File provided with the download.  I changed the name to EEM_2200-test, 
deleted the LINEARIZE line at the bottom (leaving all other variables the same), created 
and installed this curve and used it to print the 21-step wedge (100% this curve).  I 
then followed the helpful directions to use Eye-One Measure Tool to measure the strip 
and calculate the densities.  I then compared these to the LINEARIZE figures in the 
EEM_2200-cool file.  I expected to get very similar numbers but did not.  Fromm 55 to 
100 I got quite different figures.  My results were:

LINEARIZE="0.029 0.079 0.142 0.215 0.294 0.374 0.463 0.547 0.635 0.717 0.802 0.
878 0.957 1.040 1.116 1.208 1.287 1.366 1.432 1.514 1.607 "

Is this sort of variance to be expected (from printer to printer) or have I done 
something wrong?

I think I almost understand the basic components of the Ink Descriptor Files but am 
not sure how many of their values have been determined.  For example looking at the 
EEM_2200-cool and warm files, why are the ink limits set at the values they are?  Is 
this just trial and error or is there some method here?  More specifically:

1) At what point does Boost kick in and why not allow it to go to 100 at the very high 
end?  (Why set it to 90 for EEM and 95 for PFA? What would it be for HPR?)
2) K is limited to the default limit which is 75.  Why?
3) Why is LK limited to 56 (cool)/ 60 (warm)?
4) I assume the limits for LC and LM need to be the same to balance against 
metamerism and that LC and LM are used to cool the Epson K and LK (and I guess it 
follows that one might lower the LK limit a little in the cool file).    Is a cool curve is 
one that takes the warm and at 50:50 is neutral?  
5) If so, how does one measure neutral?  
6) Was the cool file created by steadily increasing the limit on LC and LM until this was 
achieved?
7) Is Gray_Val of LK set to 35 because the Epson Light Black is 35% black?
8) Why is Unused_Ink_3 not set to Y?
9) When is Calibration set to Yes?  The documentation says that it is used for the two 
calibration steps but it is not mentioned again.

Also I took a peek at the sepia file and thought I would see UC_SEPIA=YES....

Sorry for the long list but I thought it would make it easier to answer.  Is there a good 
general reading source that would help me with this stuff or does one have to be a 
real technician?

Thanks in advance

Steve