I had a similar issue with mine, it felt like it was binding when engaging the clutch and was making a creaking noise. Not smooth at all. I ended up pulling the slave cylinder out of the bell housing and found the plastic end of the slave push rod to be dry and gritty, with it worn slightly on one side. I cleaned plastic end, and then with a rag wrapped around my finger I reached inside the bell housing and cleaned the clutch fork where the slave push rod engages. Then I applied a small dab of high temp grease to the plastic end of the slave push rod and reinstalled. The noise and sticky feeling was gone. Smooth quiet clutch again. That was over 6 months ago and still operating great.