Best in some sense maybe, but not the most stopping power. Dura-ace, campy and sram all go for the right mix of stopping power to weight while the super light brakes sacrifice stopping power for weight reduction. For anyone over 150kbs this can seriously affect their decision to go with a light weight brake. One has to consider how powerful of a brake they need or want and than decide. I have seen people be very disappointd with Zero G's (or KCNC or whathaveyou) because they went out thinking that is was going top as well as dura-ace and they didn't.