Performance clutches are designed primarily to withstand higher torque loads and have fast lock-ups with limited to no slippage. When you drive and the gear is fully engaged you don't have any clutch slippage, no matter what RPM you are running. That means the clutch is functioning properly. If it slips, then you need to replace it.
To test, drive at about 30MPH. Engage 3rd gear and release the clutch. Then floor the gas. If the revs rise up too quickly and the car doesn't move forward as fast as it should, you most likely have a slipping clutch. It will smell bad also.
You don't really need such a clutch for daily use. Pedal applications tend to be stiff, engagement points are more sudden and lighter flywheels produce chatter )if and are ususally changed for lighter weight). If you are not building a race car or a high output Supercharged or Turbo setups, you will be more than fine with a stock clutch.
It's just some folks prefer the feel of a heavy sudden clutch feel. I myself is one of them.
![[wave]](/images/smilies/icon_smile_wave.gif "Wave [wave]")
But for daily driving in city traffic you'll develop muscles of an athlete pressing the pedal all the time.
![[:D]](/images/smilies/biggrin.png "Big Grin [:D]")
I'm keeping mine stock for that reason.
![[burnout]](/images/smilies/icon_smile_burnout.gif "Burnout [burnout]")
