midwest, try typing my username and "Predator" in the search engine and see what you come up with; I've written pretty extensively on how I feel about Predator camo and its ability to absolutely obliterate the human outline, though I don't recall doing an actual study, per se...

If you don't find what you're looking for, feel free to ask away or PM me if you want. Sorry for the brevity, but I'm hosting a good friend this week from out of state, and we're hunting pretty hard from sunup to sundown for a solid week... I'm barely checking any threads at all before hitting the sack at night.