Digital BW, The Print

Hello all, I have a Epson 1200 that I am using MIS VM Quadtones ink, 
and have read that if I print out Paul Roark's 21 step wedge and 
then use a densitometer like a (X-rite 810) to measure 13 patches, 
0,5%,10%,20%,30%,40%,50%,60%,70%,80%,90%,95%,100%, then go into 
Photoshop (I can't recall where right now) and take those values 
from the densitometer and input those values in Photoshop, so I 
would have a better tone.

This should make a better looking print because I have adjusted my 
1200 printer, ink, paper to match the gray range.

If all this is true, I am told that the X-rite 810 densitometer in 
the reflected mode dose not give the % values like (10%, 20% values) 
without a conversion.( how do I do that) What is my best way to get 
the best quality from my 1200 and these inks..

Thanks for your help..

Christopher