Hi, I have just received a pair of Oakley Overlord RX glasses, the description at the Oakley site says that they have (like many other models not just Overlord) Twin Shock™ hinges that allow for "hyper-flexing", and that the hinges "can be flexed beyond their normal open point". I presumed that it was like most frames nowadays with spring assisted temple hinges, but in fact these Oakleys do not seem to extend beyond their normal open point at all, they are rigid beyond the normal open point (obviously I am not forcing them). Anyone here with a pair of Oakley with "twin shock" hinges can confirm this please (I am afraid I got a fake pair, even though they look exactly like the Oakley website). Thanks!