Oh yeah, tough decision there, Kevin. To get any significant weight reduction you'd have to shave the OE rotor thin enough to be borderline dangerous; and then you'd likely find that you've shed less than a pound. My bike is set up with a Brembo and 11 mm. MC from 650 Central. Before that I used an Emgo from Mike's. Both worked well. The Brembo is a bit lighter and just a little grippier, but part of that is due to the 11 mm. MC. The Emgo is cheaper, and good value for the money.