I had quite a confusing conversation with guy a while back. It went on and on and around in circles. He assured me that only bats labelled as Inventec had the face "technology" and that the other range, which he called bonafiet were all natural willow bats. I pointed out several advertised bats without the Inventec sticker had 20+ grains on the face but less than 10 on the back........ I asked why all the bats aren't advertised as exactly to what they are and he said he "couldn't", (Couldn't sell any if he was honest?) but that he tells anyone that purhases one. Sure thing..... I agree that some look amazing! And im sure that some might be genuine but far too dodgey to take the gamble for me.