i've got the Mach V clutch line (and their matching brake lines). no issues so far. been on for over a year now. definitely firmed up the clutch feel. easy to install and no debris gets into the braiding thanks to the red sheathing around it. quality is very good. install was relatively painless (once the TMIC is out of the way). you'll probably be fine with either, but im just +1 for Mach V.