but not as stiff as the 6 puck which my friend has on stock twins. The only slipping on the sport/street clutches I've heard is people not adjusting it correctly. When you get a new clutch, you'll always have to adjust the pedal a little so if the clutches engages almost at the top of the pedal, it'll be prone to slipping quicker. Think of it this way... if you'll have stock twins for a LONG time and you'll be in the mid 300 rwhp for a while, the 6 puck "might" wear out before you're even in the degree of HP that you're looking for. ex. having 6 puck for 2 yrs. especially if your Z is a DD like me. good luck on your decision.. BTW, I have a segmented RPS flywheel as does my friend w/ the 6 puck and both are very streetable. It's not really an on/off w/ the 6 puck but definately takes some getting used to.
"Be kind, for everyone you meet is fighting a harder battle" ~ Plato