A bat maker told me he once sent 2 bats to one of these gear tests exactly the same willow quality pickup weight etc one bat the testers rated highly the other one not at all. Strange that.
Exactly the same reason I stopped bothering with the AOC test - a very well known brand did the exact same and had the same outcome (both bats virtually identical in weight, grain structure, density and shape).
Personally I've always been a bit dubious of the AOC test, you can generally tell the bat maker regardless of the bat being blank (we all prove that!). Especially when certain brands which advertise heavily in AOC appear to consistently do rather well... (albeit that was a few years back, and I've rarely bought a copy since).