i wounder how much a x-metal over the top would be price and weight would be really really hard to make.... was the ninja over the top metal or o matter or what ?Judging by the amount of flex when it was taken off, it's O Matter. Come to think of it, a fully metal OTT wouldn't work because of the lack of flex. They'd probably have to make plates bolted onto a beta titanium or unobtainium spine (like the TBII or C6).