For those of us with a cable clutch give an RSC clutch a try. They run a sealed ball bearing pivot point and are super smooth. My fingers arent the strongest and the first motor in my R6 had a heavy clutch and was a pain in traffic but running this lever now seems to have helped quite abit. They come in a couple of different lengths so Ive gone for the super short 2 finger jobby and am stoked with it.
http://www.righteousstuntmetal.com/
Attachment 7402
I also bought their pipe as well and works great. Normally I'd just make one as I did before but theirs are really nice. Quite enough just cruising around and sound awesome when the motor is on song.