not to sound like a ****, but if you shift correctly and not grind your gears or let the clutch slip it wont do that, you can still shift fast and race around. I have an 05 6 speed, and the clutch replacement with a new master cyl and flywheel re surface was $2100 so be easy on you clutch cause it will cost you, it already sounds like you have worn the clutch considerably and probably have some nice hot spots on the flywheel.