Hi guys, I had a quick question. I was studying the FBI Protocol when it comes to the 10% Ballistic Gel penetration standards, and after digging through multiple websites, I noticed that certain aspects aren't talked about as much, like skin resistance. Do you all no how many inches of gel is equivalent to penetrating through skin (forearm), and exiting the skin (forearm)? I know everyone says that 12" in gel IS NOT 12" in a body, so I was curious as to how much skin played a part in that. I obviously know other things like bone does too. Not sure if true, but I've read that penetrating skin (entry) takes equivalent of 2" of gel, and 4" to exit. If this is true, that's a whopping 6" taken off of penetration right there, and maybe 8" if has to penetrate bone (another 2") in the forearm as well. Not to mention the skin and bone of the chest. That might mean by the time you get through an arm, and the bone of chest, that's 12" of penetration already?