Digital BW, The Print

I have been trying hard to understand the QTR ICC tool. I thought I 
got it but... no!!!

When the stepwedge is printed linearised and profile converted I got 
values far lighter than when non profil-converted :		
		
DEN	Linear	Linear+converted
0	96,45	96,14
5	92,9	93,59
10	89,24	90,35
15	85,27	86,92
20	81,34	83,99
25	77,4	80,57
30	73,61	77,03
35	70,04	73,91
40	66,63	70,39
45	62,3	66,99
50	58,03	63,17
55	53,54	58,76
60	50,04	55,38
65	45,97	51,15
70	41,94	46,6
75	37,92	42,89
80	34,08	38,01
85	30,44	31,62
90	25,85	26,12
95	21,73	21,11
100	17,7	17,89

Basically it looks like it applies a higher gamma...

I just took the QTR stepwedge, opened it with no color managed 
conversion (CS then assumes it will have the default grey profile 
e.g. 15% dot in my color settings), converted to QTR ICC and print it 
in QTR. 

Anyway, when visualizing the kTRC tag of the QTR profile, the curve 
does look like it maps destination values lighter than the source 
ones in a nice below the 45° line curve.

Last to make it easier : kTRC seems (from ICC spec.) to be build from 
XYZ. I don't have PM, so I just past Lab values in a PM measurement 
file I got. PM XYZ look pretty strange with double digit figures 
while XYZ range from 0 to 1.99... ?

So 2 questions :

1. Do I need to also input XYZ in PM file to feed QTR create ICC and 
if so how do I convert "real" XYZ to the PM XYZ format ?
2. Is that normal QTR ICC lightens a file ? 

Any help would be more than welcome...

Olivier