Juicy:
True story, my most demanding customer asked last week, when she was reviewing her most recent group of giclees (I am always holding my breath at this point) asked what is that? I answered, "...oh that's the canvas that it is painted on." End of discussion.
The four shot mode works great. I still am a bit unsteady in using the create a white reference, but there is always just a bit more to master.
Jerry