Jam the clutch pedal into the floorboard as far as you can every shift (or repeatedly in the driveway in your case). That will help kill the seals and introduce contaminants in both the master and the slave.
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2011 370Z 6MT Sport Gun Metallic | ARC | CJM | Ecutek | FI | Fujimura | R2C | SPL | Stillen | TWM | Z1 | ZSpeed | |