I am upgrading my shimano m445 with 203mm rotors as I need more stopping power. I am a big guy and looking at these two, they seem like a good price. I like the red accents on the ashima, but if they are not quality the rt66l will do. Has anyone used either of these? I will eventually be upgrading my brakes to a stronger double piston or a quad piston like the zee or avid code r. What about the Hope float rotors?