Below is one of the better collagen photos I have been able to pull off. I have to tease the fibers apart with needles to give a better view of the structure. You are all already familiar with what a green cape looks like (this is whitetail). What I used to flush the fibers clear of extracellular fluids was...........good ol' STOP-ROT. This should help you to better understand why a STOP-ROT treated cape will respond much more quickly to salting, and salt drying. With just salting, a lot of water will be pulled, but a lot of the body fluids will be left "stuck" to the fibers. Acids do not have to work through the exracellular material either, making for more efficiency with the acid pickle. I had posed the question on another thread about what color does elemental carbon, oxygen, hydrogen, and nitrogen make in combination. Now you know WHY the three proteins that make up collagen are classed as crystaline organic solids.