It seems a choice between the R1. EBC and Rotora's. Even though the cross drilling is very cool, the consensus is it does limit the contact area of the rotor, it also weakens the rotor a tiny bit and is really only effective under high heat (racing) situations. The just slotted rotors add enough noise (whooshing) and are just as effective under normal loads as the cross drilled without the extra noise the cross drilling adds. Would anyone like to take a shot at placing these rotors in order of preference.
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