QTR-Quadtone RIP

I like the results of using 'create icc' but I have a question about
the preview. I have two different icc profiles for the same paper/ink
etc. I made one for regular output and one that has a varnish coating.
Here's the output
normal:
Step	Dens	Lab
0	0.03	97.36
5	0.1	91.43
10	0.15	87.39
15	0.23	81.23
20	0.31	75.44
25	0.37	71.32
30	0.45	66.12
35	0.54	60.64
40	0.62	56.08
45	0.71	51.27
50	0.8	46.78
55	0.9	42.14
60	0.99	38.26
65	1.1	33.86
70	1.2	30.18
75	1.3	26.77
80	1.4	23.61
85	1.48	21.25
90	1.52	20.12
95	1.58	18.5
100	1.59	18.23

varnished:
Step	Dens	Lab
0	0.05	95.63
5	0.15	87.39
10	0.24	80.48
15	0.34	73.36
20	0.44	66.75
25	0.54	60.64
30	0.65	54.44
35	0.75	49.23
40	0.86	43.95
45	0.97	39.1
50	1.09	34.25
55	1.2	30.18
60	1.31	26.44
65	1.45	22.12
70	1.57	18.76
75	1.69	15.7
80	1.81	12.92
85	1.95	9.97
90	2.04	8.24
95	2.11	7.01
100	2.19	5.83

As you can see they are quite different.
This works very well for the printed output but I'm a little confused
by what I see on the screen. I use 'convert to profile' but I don't
really see a change on what is on the screen between the two profiles.
However, when I print I get the expected output.
Is that normal??
Thanks
Scott