QTR-Quadtone RIP

Hi,

I discovered the ICC profiling tool in QuadtoneRIP.
As described, you need to measure a 21-gray target, and produce an ICC profile with these values. (See: http://www.outbackphoto.com/artof_b_w/bw_09/essay.html)

If one wants to make a color ICC profile, he/she has to measure a color chart with several hundreds of patches to get a high quality profile.

My question: I wonder if the quality of such a QuadtoneRIP ICC profile is good enough?? (because of the minimal amount of measured patches).

Ben Albu