Sparks; I had Tousley replace my stock clutch last year with a Barnett (complete) noticed only a silt difference in the clutch lever force, but now it feels normal, The raider is a hydraulic clutch though, I know when I had my 2001 Roadstar after putting a Barnett in it (also complete) the clutch lever force felt a little heavy at first, but never had any slipping problems with a Barnett.