That's not really the point of gel testing in my mind. It just a way to get a baseline comparison from cartridge A to cartridge B. I don't think just because cartridge X gets 14" in gel thats what it will do in a human body. But if cartridge X gets so and so inches more in penetration and expands so and so more than cartridge Y in gel than I'm inclined to purchase cartridge X.I don't like gel tests, the results will never be the same as a human (or other) body. Well, unless they start adding ribs in the mix. Hitting bone is going to severely change the results.