What is 50% crush? HOW the hell do you know you've achieved 50% crush? Does that change the torque value for the bolt that the gasket is behind? Are the current torque specs on the 5 layer metal ones set to a specific crush level because of their composition?
Are these made from the flexible graphite with aramid fiber or what? I know its graphite, but it has to be combined with a material to make it flexible and they look really thick which allows the crush seal. Its my understanding that they're not reusable like the crucial racing ones?