2001 400s, just hit 20,000 miles and the clutch started to slip here and there under power. I replaced the complete clutch kit with a KG factory kit(springs, frictions, and steels). Clutch still slips here and there. I think I have the lever adjusted properly but it flops up and down almost a half inch and is just crappy. Now it seems no matter how I adjust the new clutch it slips a little. What's the recommended break in procedure and is it normal that a new clutch slips here and there?