Replaced the master cylinder 2 months ago,
replaced the clutch 2 weeks ago,
started a 4-day vacation last thursday and the clutch started slipping again just 2 hours into the drive. Same symptom: the clutch begins to engage with the pedal a little higher/farther out, then its a little harder to shift gears, then the clutch starts to slip, then it revs up even after the clutch has engaged. After sitting a few nights, the whole car runs fine again.