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drg 
This is the new part of the Comparisons I am adding. Grain structure.
I have played around with both negative and positive variations of both white and dark frame images. Dark frame meaning no exposure to light and thus only the film base is left after processing. White frame is shooting a known white color reference evenly lit and the film is washed completely at full exposure/over exposure.
I decided that for now, a Dark Frame inverted provides the best representative image for scanning and display. The film was scanned at 2000dpi and then the CYMK color separation was performed so each layer of the C-41 film can be viewed as to how it will effect the final image.
There is a quadrant of the marked square for each separation. I may need to put rule lines to delineate them, but for now each corner of the square is the separation as marked and if your monitor isn't too far off you will see the side-by-side difference.
The separations are based on the max density(90%) standard for each of the colors and the K is based on removing the residual dye colors as speced by FUJI and then producing the K or black reference separation. The result is a grain structure or the color 'blob' structure typical of C-41 films. This film is known to have a very uniform 'grain' though not fine or minimal.
In the hood of the Coral '57 chevy in the two previous posts related to this, you can see 'sand' like grain. Very typical of this film. It works wonders for portraits under mixed or difficult lighting. I've used it extensively for weddings and if anyone wants to see this used for that I'll find already posted links or make one.
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