I will be adding description to this post soon - in the mean time here are the three videos that showed this comparison.
This photo shows my preparation for the process:
I first stamped the top piece of leather with the hats and slightly beveled around them.
Then I applied Neatlac in specific spots as I will soon explain. Those areas stayed dark, even after the Neatlac dried, and I realized I would have to do the same on another piece of leather that was tanned differently. You can see the difference in the effect of the Neatlac. I did the same on both pieces, so when I refer to "B", it is the second hat from the left in the top row, on both pieces of leather.
A: No resist, no dye.
B: Both hat and background resisted.
C: Just the hat is resisted with the Neatlac.
D: Only the background is resisted.
E: No resist, no dye.
F: Hat painted with white acrylic paint
G: Background dyed with Java brown water-based dye.
H: Background dyed and hat resisted.
After this, the Hi-Lite stain was applied:
Here is the result:
On both pieces the background dye around G and H almost completely disappeared - I think the Java brown dye and the Chestnut Hi-Lite colors were too close for the dye to show through in contrast.
And here is a quick tip:
In this case however, I wanted to get the Hi-lite stain off as much as possible and also make sure that the color was on as even as possible. To do this, I applied the Neatlac with a sponge as you can see in this video: